camera and camera accessory

专利摘要:
CAMERA AND CAMERA ACCESSORY A camera accessory (100) is attached to a camera (10). A camera accessory includes an accessory holder (301) to be separably coupled with a camera holder (201). The accessory holder is provided with accessory bayonet claws (301a) and brought, by relative rotation with a camera holder, from a first state, in which each of the accessory bayonet claws is inserted between the bayonet claws of the camera (201a) provided in the camera holder in a second state, in which the accessory bayonet claws engage with the camera bayonet claws to complete the attachment of the accessory and camera brackets. The camera accessory is additionally provided with accessory contact surfaces (302an) arranged in a relative rotation direction of the brackets on the accessory holder. The accessory contact surfaces include a first accessory contact surface (302a1) used to indicate the type of camera accessory and is provided adjacent to the accessory bayonet jaw.
公开号:BR102013008246B1
申请号:R102013008246-5
申请日:2013-04-04
公开日:2020-12-01
发明作者:Tetsuya Nishio；Yoshihiko Konno；Tatsuyuki Tokunaga；Takashi Hasegawa；Azusa Sugawara；Hiroshi Kikuchi
申请人:Canon Kabushiki Kaisha；
IPC主号:

专利说明:

Field of the Invention
[0001] The present invention relates to a camera and a camera accessory interchangeable with the camera, such as an interchangeable lens. Description of Related Art
[0002] Such camera accessories (each hereinafter referred to simply as “an accessory”) receive, in a state being attached to a camera, power supply from the camera, and perform transmission of commands, data, or the like, with the camera. In order to carry out such a power supply and communication, a fixing part (support) of the camera and that of the accessory are provided with multiple electrical contacts (each hereinafter simply referred to as “a contact”), in which paired parts are brought in contact with each other to establish an electrical connection. In addition, as a method of fixing (coupling) the camera and accessory, bayonet coupling is often employed, in which camera and accessory supports are relatively rotated to make bayonet claws, provided in the respective supports, fit together. .
[0003] In some of these cameras and accessories, a signal, to be used by the camera to determine the type of accessory attached to it, is introduced from the camera accessory via a specific contact (hereinafter referred to as “a contact determinant of the type of accessory ”) between the multiple contacts provided in each accessory holder and camera. The camera receiving the signal switches, according to the type of accessory determined, for example, a voltage or a method to be used for communication between the camera and the accessory.
[0004] In each of a camera and an interchangeable lens described in Japanese Patent Open to the Public No. 09-211645, a snap clamp provided in its bayonet holder and a power supply contact, provided inside the bayonet holder to supply camera force to the interchangeable lens, are arranged in order to overlap in a radial direction of the bayonet holder. This arrangement prevents a part around the power supply contact on the interchangeable lens from being displaced, due to the external force acting on the interchangeable lens, and thus prevents the power supply from the camera to the interchangeable lens from being stopped due to the connection failure between power supply contacts.
[0005] However, the interchangeable camera bayonet and lens brackets, described in Japanese Open Patent No. 09-211645, are not provided with the contacts that determine the type of accessory.
[0006] In addition, the failure of connection between the contacts determining the type of accessory causes the camera to make an incorrect determination of the type of accessory, which results in adjustment of an improper transmission voltage of the camera with the interchangeable lens fixed and, in this way, it can cause an erroneous operation of the accessory. SUMMARY OF THE INVENTION
[0007] The present invention provides a camera accessory and a camera which are able to prevent connection failure of the contacts determining the type of accessory provided in their supports.
[0008] The present invention provides, as an aspect thereof, a camera accessory separably attached to a camera. The camera accessory includes an accessory holder to be separably coupled with a camera holder provided on the camera, the accessory holder being provided with accessory bayonet claws and being brought, by relative rotation with the camera holder, from a first state in which each of the accessory bayonet jaws is inserted between the camera's bayonet jaws provided in the camera holder, for a second state, in which the accessory bayonet jaws engage with the camera's bayonet jaws to complete the coupling the accessory brackets and the camera, and a plurality of accessory contact surfaces arranged in a relative rotation direction of the accessory brackets and the camera in the accessory bracket. Accessory contact surfaces include a first accessory contact surface used to indicate the type of camera accessory. The first accessory contact surface is provided adjacent to the accessory bayonet jaw.
[0009] The present invention provides another aspect, a camera, in which a camera accessory is separately separable. The camera includes a camera holder being separably coupled with an accessory holder provided in the camera accessory, the camera holder being provided with camera bayonet claws and being brought, by relative rotation with the accessory holder, from a first state , in which each of the bayonet claws provided in the accessory holder is inserted between the camera's bayonet claws, for a second state, in which the camera's bayonet claws engage with the accessory bayonet claws to complete the coupling of the camera and accessory brackets, a camera contact retaining part, provided in the camera holder, and a plurality of camera contact pins, arranged in a relative rotation direction of the accessory and camera brackets and retained by the part lateral contact retention of the camera. The camera contact retaining part movably holds the camera contact pins in a projection and retraction direction with respect to the camera contact retaining part. The camera contact pins include a first camera contact pin used to determine the type of camera accessory attached to the camera. The first camera contact pin is provided adjacent to the camera bayonet claw.
[00010] The present invention provides as yet another aspect, a camera accessory separably attached to a camera. The camera accessory includes an accessory holder being separably coupled with a camera, the accessory holder including accessory bayonet claws, and a plurality of accessory contact surfaces provided in the accessory holder. Accessory contact surfaces include a first accessory contact surface used to indicate the type of camera accessory. The first accessory contact surface is provided adjacent to the accessory bayonet jaw.
[00011] Other aspects of the present invention will become apparent from the following description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[00012] Figs. 1A and 1B are block diagrams showing an electrical configuration of a camera and an interchangeable lens attached to it, which are in Mode 1 of the present invention.
[00013] Figs. 2A and 2B show configurations of supports and connectors that are provided in the camera and interchangeable lens of Mode 1.
[00014] Figs. 3A and 3B are enlarged views of the connectors.
[00015] Fig. 4 is a cross-sectional view of the connectors.
[00016] Figs. 5A to 5H show connector relationships during a Mode 1 lens attachment process.
[00017] Figs. 6A to 6E are enlarged views of Figs. 5D to 5H.
[00018] Figs. 7A and 7B show Modal 1 lens side contact patterns.
[00019] Figs. 8A and 8B show contact pins on the side of the camera in a state of coupling of the Mode 1 brackets.
[00020] Figs. 9A to 9C show the side contact pins of the camera in an intermediate rotation state of the Modality 1 supports.
[00021] Fig. 10 shows contact pins on the side of the camera in a modified example of Mode 1.
[00022] Figs. 11A to 11C show side contact patterns of lens and side contact pins of the Mode 2 camera of the present invention.
[00023] Figs. 12a and 12B show side contact pins of the camera in another modified example of Mode 1.
[00024] Figs. 13A and 13B are block diagrams showing connection of lens type determination devices provided with first and second interchangeable lenses with a camera microcomputer in Mode 1.
[00025] Fig. 14 is a block diagram showing a Type 1 voltage converter configuration.
[00026] Figs. 15A and 15B are time diagrams showing examples of entry and exit times for the Mode 1 camera microcomputer.
[00027] Fig. 16 shows the arrangement of bayonet claws and contact patterns and pins of Mode 1. DETAILED DESCRIPTION OF THE MODALITIES
[00028] The exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
[00029] [Mode 1]
[00030] Fig. 1A shows an interchangeable lens 100 as a camera accessory and a camera 10, to which the interchangeable lens 100 is separably (i.e. interchangeably) attached, which are in Mode 1 of the present invention and constitute a system of camera. Each of the camera 10 and the interchangeable lens 100 has a support 1 provided with electrical contacts to supply power source 10 for the interchangeable lens 100 and to perform communication between them. Although this embodiment describes the interchangeable lens as the camera accessory separably attachable to the camera, other camera accessories are also included in other embodiments of the present invention.
[00031] Camera 10 includes an image sensor (image capture element) 11 which photoelectrically converts an objective image, such as an optical image formed by an image-collecting lens 101 housed in the interchangeable lens 100, and emits an electrical signal analogous. In addition, camera 10 includes an A / D converter 12, which converts the analog electrical signal output from the image sensor 11 to a digital signal, and an image processor 13, which performs various imaging processes on the digital signal to produce an image signal. The image signal (still image or video) produced by the image processor 13 is displayed on a display device 14 or recorded on a recording medium 15.
[00032] The camera 10 also includes a memory 16, which serves as a buffer to perform the process on the image signal and stores operational programs to be used by a camera controller 18 described below. The camera 10 is additionally provided with an operational input device 17, which includes a power switch to switch power on and off, an image capture switch to start recording the image signal, and a selection / adjustment switch for perform adjustment in various menus. The camera controller 18, including a microcomputer, controls the image processor 13, according to signals from the operational input device 17, and controls communication with the interchangeable lens 100.
[00033] On the other hand, the interchangeable lens 100 includes a lens trigger 102, which drives actuators to move a focus lens, a zoom lens, an aperture stop, and an included image stabilizer lens (but not shown) on the image-collecting lens 101. The interchangeable lens 100 is further provided with a lens controller 103, which includes a microcomputer and controls lens driver 102, according to control signals from camera controller 18, via communication.
[00034] Fig. 1B shows terminals provided in support 1 for electrical connection of camera 10 (camera controller 18) and interchangeable lens 100 (lens controller 103).
[00035] An LCLK terminal (1-1) is a terminal for a camera communication regulator signal output 10 for the interchangeable lens 100. A DCL terminal (1-2) is a terminal for transmitting data from the camera 10 for the interchangeable lens 100. A DLC terminal (1-3) is a terminal for outputting transmission data from the interchangeable lens 100 to the camera 10.
[00036] An MIF terminal (1-4) is a terminal for detecting attachment of the interchangeable lens 100 with camera 10. Microcomputer 20 (hereinafter referred to as “camera microcomputer”) in camera controller 18, detects that the lens interchangeable 100 is attached to camera 10 on a MIF terminal voltage basis.
[00037] A DTEF terminal (1-5) is a terminal for detecting the type of interchangeable lens 100 attached to camera 10. Camera microcomputer 20 detects the type of interchangeable lens 100 attached to camera 10 on a basis of a voltage of DTEF terminal. The voltage of the DTEF terminal corresponds to a signal to be used by the camera 10 to determine (or identify) the type of the camera accessory (interchangeable lens 100) attached to the camera 10.
[00038] A VBAT terminal (1-6) is a terminal for supplying the trigger power source (VM) of the camera 10 to the interchangeable lens 100; the drive power source is used for various operations of the interchangeable lens 100, such as driving several actuators, except communication control. A VDD terminal (1-7) is a terminal for supplying communication control power (VDD) source from camera 10 to interchangeable lens 100; the communication control power source is used for communication control on the interchangeable lens 100. The VBAT terminal is provided separately from the VDD terminal. This is because the sharing of the same terminal by the VBAT terminal and the VDD terminal can increase the electrical current flowing through the terminal, due to a heavy load caused by actuation of the actuator or similar, which can affect the operation of the microcomputer. In addition, the communication control power source must always be supplied from camera 10 to the interchangeable lens 100 via the VDD terminal and, on the other hand, the drive power source can be supplied from camera 10 to the interchangeable lens 100 via the VBAT terminal when needed.
[00039] A DGND terminal (1-8) is a terminal for connecting a camera communication control system 10 and interchangeable lens 100 with ground. That is, the DGND terminal is provided as a grounding terminal along with the VDD terminal. A PGND terminal (1-9) is a terminal for connecting a mechanical transmission system to the ground, including the actuator, such as a motor, which is provided in each of the camera 10 and the interchangeable lens 100. In other words, the PGND terminal is provided as a grounding terminal in relation to the VBAT terminal.
[00040] The following description will be made of a case in which the camera 10 identifies, as the interchangeable lenses 100 of different types, a first interchangeable lens and a second interchangeable lens, whose communication voltages are different from each other. The transmission voltage will be described later.
[00041] A camera power supply 21 provided in the camera controller 18 converts a battery voltage supplied from a battery (not shown) included in camera 10 into voltages necessary for operations of the respective circuits in camera 10. Specifically, the supply of camera power 21 produces V1, V2, V3 and VM voltangens.
[00042] The V1 voltage is a voltage as the communication control energy source (VDD) of the first and second interchangeable lenses and the transmission voltage of the first interchangeable lens. Voltage V2 is the transmission voltage of the second interchangeable lens. The V3 voltage is a voltage as a source of operating energy for the camera microcomputer 20. The voltage VM is, as mentioned above, a voltage as the source of drive energy for the actuator provided in the first and second interchangeable lenses. Voltage V1 is different from voltage V2. On the other hand, voltage V1 can be the same as voltage V3 or VM, and voltage V2 can be the same as voltage V3 or VM (or it can be different from both voltages V3 and VM).
[00043] In response to power switch 22 connection, camera microcomputer 20 starts supplying VDD and VM from camera 10 to interchangeable lens 100. In response to power switch 22 shutdown, camera microcomputer 20 terminates the supply of VDD and VM from camera 10 to the interchangeable lens 100.
[00044] The camera microcomputer 20 performs communication with the interchangeable lens 100 through a voltage converter 23. The camera microcomputer 20 has an LCLK_OUT terminal to send a communication regulator signal, a DCL_OUT terminal to send communication data to the interchangeable lens 100, and a DLC_IN terminal for receiving communication data from the interchangeable lens 100. In addition, camera microcomputer 20 has an MIF_IN terminal for detecting attachment of the interchangeable lens 100 to camera 10, a DTEF_IN terminal to identify the type of interchangeable lens 100 attached, and a CNT_V_OUT terminal to output a transmission voltage switching signal to voltage converter 23. Camera microcomputer 20 still has a CNT_VDD_OUT terminal, to output a current application signal to the power switch 22, a connection terminal connected with the image processor 13, and another connection terminal connected with the input device Operating 17. The operation of the voltage converter 23 will be described later.
[00045] A power supply from the 214 lens converts the VDD (V4), supplied from the camera 10 to the interchangeable lens 100, into a V5 voltage. A microcomputer (hereinafter referred to as “a lens microcomputer”) 211 in the lens controller 103, communicates with the camera microcomputer 20 via voltage converter 23. The lens microcomputer 211 has an LCLK_IN terminal to receive the regulating signal communication terminal, a DLC_OUT terminal for sending communication data to camera 10, a DCL_IN terminal for receiving communication data from camera 10 and a connection terminal connected with lens driver 102.
[00046] Description will be made by detecting the attachment of the interchangeable lens (first and second interchangeable lenses) 100 with camera 10. The MIF_IN terminal of camera microcomputer 20 is raised to the source voltage of a resistor R2 (for example, 100 KQ) provided on camera controller 18 and thus becomes H (high) when the interchangeable lens 100 is not attached to camera 10. On the other hand, the MIF_IN terminal is connected to the ground (GND) of the interchangeable lens (first and second interchangeable lenses) 100 when the interchangeable lens 100 is attached to the camera 10 and thus becomes L (low) at a point in time when the interchangeable lens 100 is attached, regardless of the lens type interchangeable 100 fixed.
[00047] Description will be made of an exemplary configuration of the lens type determining device 213 provided in the lens controller 103 with reference to Figs. 13A and 13B. The lens type determining device 213 consists of a resistor RL provided between the DTEF terminal on the support 1 and the GND. A resistance value of the RL resistance is preset to a value designated for the type of interchangeable lens. For example, the resistance value of the RL resistance provided in the first interchangeable lens, shown in Fig. 13A, is set to 0Q, and that of the RL resistance provided in the second interchangeable lens shown in Fig. 13B is adjusted to 300KQ.
[00048] In camera 10, a resistor R1 (for example, 100KQ) is connected between the DTEF terminal, on support 1, and the voltage (V3) of the operational power source, on the camera microcomputer 20, and the DTEF terminal is connected with the DTEF_IN terminal of the camera microcomputer 20. The DTEF_IN terminal of the camera microcomputer 20 is provided with an AD conversion function (10Bits AD conversion function of this mode).
[00049] Description will be made of a lens type determination operation (hereinafter referred to as “lens type determination”) of the camera microcomputer 20 to determine the type of interchangeable lens 100 attached to camera 10. The microcomputer of camera camera 20 performs the lens type determination based on the voltage value entered in the DTE_IN terminal. Specifically, the camera microcomputer 20 performs AD conversion of the input voltage value and performs the lens type determination by comparing the converted AD value with the lens type determination references stored in the camera microcomputer 20.
[00050] For example, when the first interchangeable lens is attached to camera 10, the converted AD value of the voltage value input to the DTEF_IN terminal is decided by a resistance ratio RL / (R1 + RL), where R1 is 100KQ and RL is 0Q, as approximately “0x0000”. The camera microcomputer 20 detects that the converted AD value obtained from the DTEF_IN terminal is within a range of “0x0000 to 0X007F”, which is a first reference for determining the lens type and, therefore, determines that the attached interchangeable lens is the first interchangeable lens. On the other hand, when the second interchangeable lens is attached to camera 10, the AD value converted from the voltage value input to the DTEF_IN terminal is decided by the resistance ratio RL / (R1 + RL), where R1 is 100KQ and RL is 300kQ, like approximately “0x02FF”. The camera microcomputer 20 detects that the converted AD value obtained from the DTEF_IN terminal is within a range of “0x0280 to 0x037F”, which is a second reference for determining the type of lens and, therefore, determines that the fixed interchangeable lens is the second interchangeable lens.
[00051] Although the above description was made of the case where the resistance value, of the RL resistance of the first interchangeable lens, is 0Q, a configuration can be used that directly connects the DTEF_IN terminal with the GND.
[00052] Fig. 14 shows an exemplary configuration of the voltage converter 23. A voltage selector 51 has the function of emitting, for an OUT terminal, any one of the two voltages introduced for a VIN1 terminal and a VIN2 terminal, according to with a logic signal, at a SEL terminal. Specifically, voltage selector 51 emits the input voltage to the VIN1 terminal, when the input for the SEL terminal is L, and the voltage selector 51 outputs the input voltage to the VIN2 terminal, when the input to the SEL terminal is H The V1 voltage is connected to the VIN1 terminal, the V2 voltage is connected to the VIN2 terminal, and the CNT_V_OUT terminal of the camera microcomputer 20 is connected to the SEL terminal. The output from the OUT terminal is hereinafter referred to as “VS”.
[00053] Each of the level switches 52, 53 and 54 has the function of converting a voltage from a signal input to a SIN terminal of a voltage at a VIN terminal into a voltage of a VOUT terminal (VO in the figure) and then output the converted voltage from a SOUT terminal.
[00054] On the level 52 switch, the SIN terminal is connected to the LCLK_OUT terminal of the camera microcomputer 20, and the SOUT terminal is connected to the LCLK terminal of support 1. In addition, the VIN terminal is connected with V3, which is the same voltage as the operating power source voltage of the camera microcomputer 20, and the VOUT terminal is connected to the VS output of the voltage selector 51. On the level switch 53, the SIN terminal is connected to the DCL_OUT terminal of the camera microcomputer 20, and the SOUT terminal is connected with the DCL terminal of bracket 1. In addition, the VIN terminal is connected with V3, which is of the same voltage as the voltage of the operating power source of the camera microcomputer 20, and the VOUT terminal is connected to the VS output of the voltage selector 51.
[00055] On the level 54 switch, the SIN terminal is connected with the DLC terminal of support 1, and the SOUT terminal is connected with the DLC_IN terminal of the camera microcomputer 20. In addition, the VIN terminal is connected with the Vs output of the voltage selector 51, and the VOUT terminal is connected with V3, which is the same voltage as the voltage of the operational power source of the camera microcomputer 20. Thus, the VS output (that is, V1 or V2) emitted from the selector voltage voltage 51 is used as the communication voltage between camera 10 and interchangeable lens 100.
[00056] Description will be made of a voltage switching operation of the voltage converter 23. The camera microcomputer 20 controls the CNT_V_OUT terminal according to a logic table shown in table 1. [TABLE 1]

[00057] As described above, the camera microcomputer 20 determines the type of interchangeable lens 100 fixed based on the voltage value (converted value AD) introduced in the DTEF_IN terminal. The camera microcomputer 20 then controls a logic signal emitted from the CNT_V_OUT terminal depending on a result of the lens type determination of the attached interchangeable lens 100. Specifically, when determining from the voltage value of the DTEF_IN terminal that the fixed interchangeable lens 100 is the first interchangeable lens, the camera microcomputer 20 emits H from the CNT_V_OUT terminal to control the transmission voltage for V1. On the other hand, when determining from the voltage value of the DTEF_IN terminal that the fixed interchangeable lens 100 is the second interchangeable lens, the camera microcomputer 20 emits L from the CNT_V_OUT terminal to control the transmission voltage for V2.
[00058] In addition, when detecting, as the voltage value (converted value AD) of the DTEF_IN terminal, a voltage outside the range of the first and second lens type determination references mentioned above, the camera microcomputer 20 determines that the attached interchangeable lens is "a non-compliant lens", in which camera 10 is not compliant or reserves the determination because it is unable to make a normal lens type determination. In these cases, the camera microcomputer 20 does not communicate with the attached interchangeable lens 100.
[00059] Figs. 15A and 15B show exemplary entry and exit times for the MIF_IN terminal, DTEF_IN terminal, CNT_V_OUT terminal, CNT_VDD_OUT terminal of the camera microcomputer 20 and the LCLK terminal of the bracket 1. Fig. 15A shows the entry and exit times when the first lens interchangeable lens is attached to camera 10, and Fig. 15B shows the entry and exit times when the second interchangeable lens is attached to camera 10. In these Figures, t0 represents the time that the voltage input to the DTEF_IN terminal is made during the process of fixing the interchangeable lens 100 to the camera 10 (hereinafter referred to as “during a lens fixing process”), and t1 represents a time when the voltage input to the MIF_IN terminal is made during the fixing process lens. In addition, t2 represents the time the camera 10 is activated (power is turned on), t3 represents the time when the lens type determination and transmission voltage adjustment are made, and t4 represents the time the power supply for the attached interchangeable lens 100 and communication immediately after it is initiated. Time t0 can be identical to time t1. Although the times when the voltage input for the DTEF_IN terminal and the voltage input for the MIF_IN terminal are made, respectively, as described above, t0 and t1, the camera microcomputer 20 reads the voltage value from the DTEF_IN terminal after the MIF_IN terminal become L.
[00060] In both cases, in which the first interchangeable lens is attached to the camera 10 and where the second interchangeable lens is attached to the same, the voltage input to the MIF_IN terminal is made (t1) after (or simultaneously with) the voltage input to the DTEF_IN (t0) terminal. Then, after camera 10 is activated (t2), the lens type determination and transmission voltage adjustment, depending on the result of the lens type determination, are performed (t3). Then, the power supply for the interchangeable lens 100 and the communication between them are initiated (t4). When the interchangeable lens is attached to camera 10 after camera 10 is activated, even though t2 is before t0 and t1, the voltage input to the MIF_IN terminal is made after (or simultaneously with) the voltage input to the DTEF_IN terminal .
[00061] When such an operation or control for attaching the interchangeable lens 100 to the camera 10 (hereinafter referred to as “lens attachment”) is performed, regardless of whether the attached interchangeable lens 100 is the first or second interchangeable lens, and regardless of the camera activation time, it is necessary that the connection of the DTEF terminal in support 1 is made before (or simultaneously with) the connection of the MIF terminal. One reason for this is as follows. As described above, the camera microcomputer 20 reads the voltage value from the DTEF_IN terminal, after the MIF_IN terminal becomes L. If the connection to the DTEF terminal is not made, even though the MIF_IN terminal becomes L, it is determined that the attached interchangeable lens is the aforementioned non-compliant lens, and the camera microcomputer 20 does not communicate with the interchangeable lens 100. Therefore, in order to determine the type of interchangeable lens 100 attached and perform the communication using a voltage of appropriate transmission with the interchangeable lens 100, it is necessary that the connection of the DTEF terminal is certainly made in the time when the MIF_IN terminal becomes L.
[00062] Next, the description will be made of a configuration of a camera side connector, including camera side contact pins constituting camera sides of the terminals, described above, provided in support 1 and a lens side connector, including patterns of side lens contact (accessory side contact surfaces) constituting its lens sides in the bracket 1.
[00063] Fig. 2A shows a lateral support of the camera 201 seen from a front side (objective side) in a direction of the optical geometric axis corresponding to a direction in which the optical geometric axis of the image collecting lens 101 extends. Fig. 3A is an enlarged view showing the side camera connector (consisting of a side camera contact base 202 and the side contact pins of camera 202a1 to 202a9) provided on the side support of camera 201. Fig. 2B shows a lateral support of the lens 301 seen from a rear side (flat side of the image), in the direction of the optical geometric axis. Fig. 3B is an enlarged view showing the side lens connector (consisting of a side lens contact base 302 and the side lens contact patterns 302a1 to 302a9) provided on the side lens holder 301. In addition, Fig 4 shows a cross section of the side camera connector and the side lens connector in the coupling termination state.
[00064] The side support of the camera 201 is attached to an extreme front part of a camera body (not shown) as a chassis. The lateral support of the camera 201 has, at its lateral front end of external circumference, a support base shaped in a ring 201b provided to fix a predetermined flange back, and also has, more inside than not on the support base surface 201b, in three places in its circumferential direction (hereinafter referred to as “a circumferential supporting direction”), camera side bayonet claws 201a. In addition, the lateral support of the camera 201 is provided with a locking pin 205, for positioning the lateral support of the camera 201 and the lateral support of the lens 301 in their relative rotational direction; the locking pin 205 is movable in order to project and retract with respect to the base surface of the support 201b.
[00065] The side lens holder (accessory holder) 301 is attached to an extreme rear part (not shown) of the interchangeable lens. The lateral support of the lens 301 has, in its extreme rear circumferential lateral part, a support base surface 301b, which is a reference surface in the direction of the optical geometric axis, and has, more inside than not on the base surface of support 301b, in three places in its circumferential direction (circumferential support direction), side bayonet claws (accessory side) of lens 301a. In addition, the lateral support of the lens 301 is provided with a locking hole part 301c, in which the locking pin 205 provided in the lateral support of the camera 201 can be inserted; the locking bore part 301c is formed in order to open the support base surface 301b. The locking hole part 301c has, in the circumferential direction (that is, in a relative rotation direction of the camera and lens supports 201 and 301), an internal diameter that can fit with the locking pin 205 with almost no play, and has, in a radial direction (hereinafter referred to as "a radial supporting direction") of the lateral support of lens 301, a longitudinal hole shape with an inner diameter greater than an outer diameter of the locking pin 205 to some degree . The shape of the longitudinal hole is provided in order to allow smooth insertion of the locking pin 25 into the locking hole part 301c, when the interchangeable lens 100 is fixed to (relatively rotated with respect to) camera 10.
[00066] In a partial area further inland than the bayonet claws 201a of the side support of the camera 201, a side camera contact base (camera side contact retaining part) 202 is formed, which retains nine pins. side contact of the camera 202a1, 202a2, ..., 202a9 arranged in the circumferential support direction. As shown in Fig. 4, camera side contact pins 202a1 through 202a9 are inserted into pin retaining hole parts formed in camera side contact base 202, in order to independently project forward and retract backward (that is, in order to be independently movable in the projection and retraction directions). At the bases of the pin retaining hole parts, a flexible printed spinning substrate 206 is arranged. In addition, a contact spring (202b1, 202b2, ..., 202b9) is arranged between the flexible printed wiring substrate 206 and a flange part of each side contact pin of the camera (202a1, 202a2, ..., 202a9); the contact spring bends the side contact pin of the camera to project it in front of the side camera contact base 202.
[00067] The side contact pins of the camera 202a1, 202a2, ..., 202a9 are, in this order, connected with the DTEF terminal, DGND terminal, LCLK terminal, DLC terminal, DCL terminal, PGND terminal, VBAT terminal, VDD terminal and the MIF terminal, described in Fig. 1B. The side contact pin of the camera 202a2 corresponds to a fifth side contact pin of the camera, each of the side contact pins of the camera 202a4 and 202a5 corresponds to an eighth side contact pin of the camera, the side contact pin of the camera 202a6 corresponds to a seventh side contact pin of the camera and the side contact pin of the camera 202a8 corresponds to a fourth side contact pin of the camera.
[00068] Camera 202 side contact base, camera 202an side contact pins (n = 1 to 9 and the same applies to the following description) and 202bn contact springs and the flexible printed wiring substrate 206 constitute the side camera connector.
[00069] In a partial area further inland than the bayonet claws 301a of the side lens holder 301, a side lens contact base (lens side contact retaining part) 302 is formed which retains nine contact patterns lateral rectangular lens 302a1, 302a2, ..., 302a9 arranged in the circumferential direction of support. The lateral contact pattern of the lens can be other than a rectangular shape, such as a circular shape.
[00070] The side contact patterns of the lens 302a1 to 302a9 are connected with the lens controller 103, shown in Fig. 1B, via a flexible printed wiring substrate 306. In parts of the side contact base of the lens 302 adjacent to the parts pattern retention which, respectively, retain the lateral contact patterns 302a1 to 302a9, recessed (concave) parts 302z that lower forward more than the pattern retention parts. In addition, a slope 302w is formed between each pattern retaining part and each recessed part 302z adjacent to it. In the following description, the pattern retaining parts on the lens side contact base 302 and the lens side contact patterns 302a1 to 302a9 are collectively referred to as "the lens side contact base 302".
[00071] The lens side contact patterns 302a1 to 302a9 correspond, in that order, to the camera side contact pins 202a1 to 202a9 connected with the DTEF terminal, DGND terminal, LCLK terminal, DLC terminal, DCL terminal, PGND terminal, VBAT terminal, VDD terminal, and the MIF terminal. The side contact pattern of the 302a2 lens corresponds to a fifth accessory side contact surface, each of the side contact lens patterns 302a4 to 302a5 corresponds to an eighth accessory side contact surface, the side contact pattern of the 302a6 lens. corresponds to a seventh accessory side contact surface, and the 302a8 lens side contact pattern corresponds to a fourth accessory side contact surface.
[00072] The 302 lens side contact base (including the 302z recessed part and the 302w tilt), the 302an lens side contact patterns (n = 1 to 9 and the same applies to the following description) and the substrate printed flexible wiring harness 306 constitute the side lens connector.
[00073] The side contact pin of the 202an camera and the side contact pattern of the 302an lens are arranged in the positions in which they pair with each other (that is, positions in which they make contact with each other) in the termination state of coupling of camera 10 and interchangeable lens 100. At a time of lens attachment, the side contact base of lens 302 (including the side contact pattern of lens 302an, as mentioned above) comes into contact with the side contact pin of the 202an camera, push this 202an side contact pin into the camera 202 side contact base with 202bn contact spring loading. As a result, the 202an camera's side contact pin makes contact with the corresponding (paired) side contact pattern of the lens 302an with pressure, and thus an electrical connection is established between the camera 10 and the interchangeable lens 100.
[00074] Figs. 5A to 5H show a process (states) in which the side lens connector is connected with the side camera connector during the lens attachment process. In a straight part of each of Figs. 5A to 5H, a relationship between the locking pin 205 and the locking hole part 301c in each state shown by each of Figs. 5A to 5H.
[00075] Fig. 5A shows a state in which the side support of the lens 301 is brought close to the side support of the camera 201 in the direction of the optical geometric axis to a position before each of the side lens bayonet grips 301a is inserted between the two camera bayonet claws 201a. This state shown in Figure 5A is hereinafter referred to as "a support out-of-contact state". Fig. 5B shows a state in which each of the side lens bayonet claws 301a is inserted between the two camera bayonet claws 201a, and the side lens holder 301 (i.e., the base support surface 301b) it is brought into contact with the lateral support of the camera 201 (that is, the base support surface 201b) in the direction of the optical geometric axis. This state shown in Fig. 5B is hereinafter referred to as “a support contact state (first state)”.
[00076] Figs. 5C to 5G show, in a staggered manner, an intermediate state in which the lateral support of the lens 301 is rotated with respect to the lateral support of the camera 201, after the state in support contact returns to the coupling termination state ( second state). This state shown in Figs. 5C to 5G is hereinafter referred to as "an intermediate rotation state". Fig. 5H shows a state in which the lateral support of the lens 301 is rotated with respect to the lateral support of the camera 201 to the coupling termination state.
[00077] In the in-contact support state, shown in Fig. 5B, the pattern retention part (lateral contact pattern of the lens 302a9 or its vicinity), of the lateral contact base 302, makes contact with the contact pin side of camera 202a1. As a result, the camera 202a1 side contact pin is pushed into the camera side contact base 202 when compared to the support contact out-of-contact state shown in Fig. 5A.
[00078] Of the multiple (n) side contact pins of camera 202an, the side contact pin of camera 202a1 of the DTEF terminal, which makes contact with the side contact base of lens 302 in the in-contact support state, is the hereinafter also referred to as “a first side contact pin of the camera”. On the other hand, the side contact pins of the camera 202a2 to 202a9 other than the first side contact pin of the camera, that is, the side contact pins of the camera that do not make contact with the side contact base of the lens 302 in the state in-contact support, hereinafter each also referred to as “a second side contact pin of the camera”. Of the multiple second side contact pins on the camera, the side contact pin on the camera 202a9 for the MIF terminal is a third side contact pin on the camera.
[00079] In the "support in-contact state" state, the locking pin 205 is pushed by the support base surface 301b of the lateral lens support 301 in a position away from the locking hole part 301c. Therefore, subsequent rotation of the side support of the lens 301 with respect to the side support of the camera 201 is permitted.
[00080] After the in-contact support state, shown in Fig. 5B, via the intermediate rotation state shown in Figs. 5C to 5G, and until reaching the coupling termination state, the side lens bayonet claws 301a and the camera bayonet claws 201a completely fit together. During the intermediate rotation states, the lens side contact base 302 also pushes the second camera side contact pins 202a2 through 202a9 into the camera side contact base 202, while sliding with respect to these side contact pins of the camera. camera 202a1 to 202a9. So, finally, in the coupling termination state, shown in Fig. 5H, the paired side contact pin of the camera 202an and the side contact pattern of the lens 302an make contact with each other with pressure.
[00081] Furthermore, in the coupling termination state, since the position of the locking pin 205 coincides with that of the locking hole part 301c in the circumferential support direction, the locking pin 205 protruding from the surface of support base 201b of the side support of the camera 201 is inserted into the locking hole part 301c of the side support of the lens 301. In this way, the coupling termination state is maintained until the locking pin 205 is pushed out of the part locking hole 301c by a release mechanism (not shown).
[00082] Description here will be made of a process that the 202an side contact pins of the camera and the 302an lens side contact patterns make contact with each other during the intermediate rotation state shown in Figures 5D to 5G with reference to Figs. 6A to 6D.
[00083] In the following description, a position in the 302an lens side contact pattern where the 202an camera side contact pin in the coupling termination state is referred to as "a contact position". One step, from the side contact patterns of the lens 302a1 to 302a9, corresponds to a distance between the positions of the side contact patterns of the lens 302an and 302an + 1 adjacent to each other.
[00084] In addition, a distance between the pin contact position on the side contact pattern of the 302an lens and a left end of the side contact pattern of the 302an lens in the Figure (ie, one end in a direction in which the side contact pattern of the 302an lens are moved with respect to the side contact pin of the camera 202an), is represented by Lan (La1 to La9). The distances La1 to La9 are adjusted to have the following relationship:
[00085] La1> La2, La3, La4, La5, La6, La8> La9> La7.
[00086] This relationship can be rewarded, for example, as follows, with focus on the lateral contact patterns of the lens 302a1 and 302a9 and on the lateral contact pins of the camera 202a1 and 202a9. A distance in the circumferential support direction between a part of the lateral contact pattern of the lens 302a1, where contact with the lateral contact pin of the camera 202a1 begins in the intermediate rotation state and a part of the lateral contact pattern of the lens 302a9 , where the contact with the side contact pin of the camera 202a9 begins in the intermediate rotation state that is represented by LA. The wording “the part where the contact begins” means that when the contact pattern has a rectangular shape, one side of the contact pattern is rectangular, and when the contact pattern has a circular shape, the apex of a circular arc of the contact pattern is circular. The distance in the circumferential support direction can also be said as an angle. In addition, a distance (angle) in the circumferential support direction between (central geometric axes of) the side contact pins of the camera 202a1 to 202a9 is represented by LB. The LA distance is shorter than the LB distance (in other words, the LB distance is longer than the LA distance).
[00087] When the side lens holder 301 is rotated from the state shown in Fig. 5C, the paired side contact pin of the camera (DTEF terminal pin) 202a1 and the lens side contact pattern (DTEF terminal pattern) 302a1 begin their contact with each other, as shown in Fig. 6A. At this point, since La1 to La9 (ie LA and LB) have the above-mentioned relationship, the other side contact pin of the camera is paired (202a2 to 202a9) and the side contact pattern of the lens (302a2 to 302a9) do not make contact with each other.
[00088] When the side lens holder 301 is still rotated from the state shown in Fig. 6A, the paired side contact pin of the camera (202a2 to 202a6 and 202a8) and the side contact pattern of the lens (302a2 to 302a6 and 302a8 ) simultaneously initiate their contact with each other, as shown in Figs. 6B and 5E. At this point, the paired side contact pin of the camera (202a7 to 202a9) and the side contact pattern of the lens (302a7 and 302a9) do not make contact with each other.
[00089] When the side lens holder 301 is still rotated from the state shown in Fig. 6B, the camera side contact pin (MIF terminal pin) 202a9 and the lens side contact pattern (MIF terminal pattern) 303a9 initiate their contact with each other, as shown in Figs. 6C and 5F. At this point, since La9 and La7 have the following relationship:
[00090] La9> La7,
[00091] the paired side contact pin of the camera 202a7 and the side contact pattern of the lens 302a7 do not make contact with each other.
[00092] When the side lens holder 301 is still rotated from the state shown in Fig. 6C, the paired side contact pin of the camera (VBAT terminal pin) 202a7 and the side contact pattern of the lens (VBAT terminal pattern) 302a7 initiate their contact with each other, as shown in Figs. 6D and 5G.
[00093] Then, when the side lens holder 301 is still rotated from the state shown in Fig. 6D, the lens and camera side supports 301 and 201 reach the coupling termination state, as shown in Figs. 6E and 5H.
[00094] As described above, the order in which the paired side contact pin and the side contact pattern of the lens make contact with each other is an order descending from the Lan distance and therefore the side contact pin of the camera 202a1 and the side contact pattern of the paired 302a1 lens, constituting the first DTEF terminal, initiate their contact with each other.
[00095] The distance LA and distance LB can be the same. In this case, it is desirable to increase the distance LA in order to match the distance LB, so that the instant when the pin of the DTEF terminal and the pattern of the DTEF terminal make contact with each other coincides with the instant when the DTEF terminal pin and DTEF terminal pattern make contact with each other. With this distance adjustment, a width of the lateral contact pattern of the lens 302a1 in the circumferential support direction can be increased on an opposite side part (straight part in Figs. 6A to 6E) to the part where contact with the side contact pin camera starts. In the case where the LA distance and the LB distance are equal to each other, when the side support of the lens 301 is rotated from the state shown in Fig. 5C, the side contact pins of the camera (DTEF and MIF terminal pins) 202a1 and 202a9 and the lateral contact patterns of the lens 302a1 and 202a9 corresponding to them simultaneously initiate their contact.
[00096] Next, a description will be made of the problems related to the first side contact pin of the 202a1 camera and its solution. If the side support for lens 301 makes hard contact with the side support for camera 201, when these supports 301 and 201 reach the in-contact support state of the out-of-contact support state, the 302 side lens contact base strongly hits the first side contact pin of camera 202a1. The first side contact pin of the camera 202a1 is movably inserted (that is, with a recess allowing its movement) into the part of pin retaining hole formed in the side contact base of camera 202. Thus, the impact due to the blow is probably to cause inclination or deformation (such as curve) of the first lateral contact pin of the camera 202a1 from a position almost straight extended in the direction of the optical geometric axis, according to the gap between the first pin of the side contact of camera 202a1 and the pin retaining hole part. In this case, even though the brackets 301 and 201 reach the coupling termination state, the camera 202a1's first side contact pin does not make normal contact with the 302a1 lens side contact pattern pairing with it, which can cause error of communication between the camera and the interchangeable lens or power supply short circuit.
[00097] Thus, in this modality, a width in the circumferential support direction and a height in the radial support direction of the 302an lens lateral contact pattern, a pitch and a range of the 302an lens lateral contact patterns, a pitch of the pins side contact pin of the 202an camera and a diameter of the side contact pin of the 202an camera are adjusted as follows.
[00098] [The width and height of the lens side contact pattern (accessory side contact surface)]
[00099] The side contact patterns of the lens 302a2 to 302a9 pairing with (or corresponding to), respectively, the second side contact pins of the camera, 202a2 to 202a9, are hereinafter referred to as “second lens side contact patterns” (second accessory side contact surfaces). The second side contact patterns of the lens 302a2 to 302a9 are contact surfaces that do not make contact with the first side contact pin of the camera 202a1 in the coupling termination state.
[000100] The lateral contact pattern of the 302a9 lens for the MIF terminal corresponds to a third lateral contact surface. The width of these second lens side contact patterns 302a2 to 302a9 is set to L1, as shown in Figs. 7A and 8A. In Figs. 7A and 8A, the second side contact pin of the camera is indicated by 202ax, and the second side contact pins of the camera adjacent to each other are indicated by 202ax and 202ax + 1. In addition, the second side contact pattern of the 202ax lens is indicated by 302ax, and the second side contact patterns of the lens adjacent to each other are indicated by 302ax and 302ax + 1.
[000101] The width L1 is adjusted, as shown in Fig. 8A, to be larger by a predetermined margin than a diameter V of a contact area of pin W of the second lateral contact pattern of the lens 302ax with which the second side contact pin of the camera extends almost straight in the direction of the optical geometric axis without being deformed making contact. One end of the 202ax camera's second side contact pin is worn out by repeated sliding of the tip with respect to the lateral contact patterns of the lens when attaching and separating the lens. Therefore, the W-pin contact area, where the second side contact pin of the 202ax camera makes contact, is determined by considering this wear. The diameter V is the width (diameter) of a portion of the tip of the second side contact pin of the 202ax camera, part that makes contact with the second side contact pattern of the 302ax lens.
[000102] In addition, the height of the second lateral contact pattern of the 302ax lens is set to L3, as shown in Fig. 7A.
[000103] On the other hand, the 302a1 lens side contact pattern pairing with (or corresponding to) the 202a1 camera's first side contact pin is hereinafter referred to as “a first lens contact side pattern” (first surface of contact) accessory side contact). The width of the first lateral contact pattern of the lens 302a1 is adjusted to L2 greater than L1, as shown in Figs. 7B and 8B. In Figs. 7B and 8B, the first side contact pin of the camera is indicated by 202ay and the first and second contact pins adjacent to each other are indicated by 202ay and 202ay + 1. In addition, the first side contact pattern of the lens corresponding to the first side contact pin of the 202ay camera is indicated by 302ay, and the first and second side contact patterns of the lens adjacent to each other are indicated by 302ay and 302ay + 1.
[000104] Fig. 8B shows the first lateral contact pin of the 202ay camera, the tip of which is displaced by tilting or deforming the 202ay pin from its original almost straight position extending in the direction of the optical geometric axis. The width L2 is adjusted, as shown in Fig. 8B, to be larger by a predetermined margin than a diameter VV of a possible WW pin contact area of the first 302ay lens lateral contact pattern. The possible pin contact area corresponds to a possible degree of displacement (designated value) of the tip of the 202ay camera's first side contact pin. For example, the possible WW pin contact area is an area where if the 202ay camera's first side contact pin is deformed, so that its tip exceeds this area, a failure or abnormality determination is made.
[000105] The tip of the 202ay camera's first side contact pin is also worn out by repeated sliding of the tip with respect to the lateral contact patterns of the lens when attaching and separating the lens. Therefore, the possible WW pin contact area of the first 302ay lens lateral contact pattern, where the 202ay camera's first lateral contact pin is likely to make contact, is determined by considering this wear. The VV diameter is a width (diameter) of a portion of the tip of the 202ay camera's first side contact pin, part that makes contact with the first 302ay lens side contact pattern.
[000106] In addition, the height of the first lateral contact pattern of the 302ay lens is set at L3, which is the same as the height of the second lateral contact pattern of the 302ax lens, as shown in Fig. 7B.
[000107] Although this modality describes the case in which the L3 height of each lateral contact pattern of the lens is greater than the widths L1 and L2, the height L3 can be equal to the width L1 or L2, and can be less than the width L1 or L2.
[000108] Furthermore, although Figs. 7A and 7B schematically show that the pin contact position is located in an approximate center of the lateral contact pattern of the lens in the diameter and circumferential directions of the holder, the pin contact position is not limited to it. In this modality, as shown in Fig. 6E, each pin contact position is located in an off-center position of the lateral contact pattern of the lens in the direction of the support diameter.
[000109] As described above, in this embodiment, the width of the first lateral contact pattern of the 302ay lens corresponding to the first lateral contact pin of the 202ay camera in which the tilt or deformation is likely to be caused, is determined to be greater than that of the second lateral contact pattern of the 302ax lens corresponding to the second lateral contact pin of the 202ax camera in which such inclination and deformation are not caused. In this way, if the tilt or deformation is caused by the first side contact pin of the 202ay camera (202a1), due to the contact (collision) of the side contact base of the 302 lens with the first side contact pin of the 202ay camera, it is fixed the normal contact (electrical connection) of the second side contact pin of the 202ay camera and the first side contact pattern of the 302ay lens (302a1) and, thus, the communication error between the camera 10 and the interchangeable lens can be avoided 100 and the short circuit of the power source.
[000110] Fig. 3B shows the widths L1 and L2 as angular bands θL1 and θL2 on the lateral contact base of the lens 302 formed in a circular arc shape on the lateral support of the lens 301.
[000111] [The pitch and range of lateral lens contact patterns (accessory side contact surfaces) and the pitch of the camera's side contact pins]
[000112] The pitch and range of the lateral contact patterns of the 302ax and 302ax + 1 lens (302a2 to 302a9) are respectively determined in P1 and Q1, as shown in Figs. 7A and 8A. The pitch of the lateral contact patterns of the lens of this modality is a distance in the circumferential direction of the support between the pin contact positions in the lateral contact patterns of the lens adjacent to each other. In addition, the range of lateral contact patterns of the lens is a distance in the circumferential direction of the support between a lateral contact pattern of the lens and the lateral contact pattern of the lens adjacent to it (between sides of the rectangular contact patterns). The range of the lateral contact patterns of the lens has an important implication for the contact of the lateral contact pattern of the lens and the lateral contact pin of the camera. In addition, the pitch of the second lateral contact pins of the camera 202ax and 202ax + 1 (that is, a distance between the central geometric axes of these pins) is also determined in P1 in order to match the step P1 of the second contact patterns side of the 302ax and 302ax + 1 lens.
[000113] The P1 step and Q1 interval are decided in order to satisfy the following conditions, in addition to a precondition that a pin contact area of the second side contact pattern of the 302ax lens, where the second side contact pin the 202ax camera makes contact, it's W.
[000114] As a first condition, as shown in Fig. 9a, it is necessary that a second 202ax side contact pin does not make contact simultaneously with the second lateral contact patterns of the 302ax and 302ax + 1 lens, adjacent to each other during the rotation of the interchangeable lens, for fixing and separating the lens. That is, it is necessary to determine the interval Q1 being greater than a width V of the contact area of pin W (Q1> V).
[000115] As a second condition, it is necessary that a second side contact pattern of the 302ax + 1 lens does not make contact simultaneously with the contact pins 202ax and 202ax + 1 adjacent to each other.
[000116] As a third condition, it is necessary to satisfy the first and second conditions mentioned above, even if the distance between the second lateral contact patterns of the 302ax lens is narrowed due to its positional error.
[000117] Satisfaction of the first to third conditions makes it possible to avoid failures, such as the short circuit of the power source, caused by simultaneous conduction of the second side contact patterns of the mutually adjacent lens 302ax and 302ax + 1 or the second mutually adjacent camera contact pins 202ax and 202ax + 1.
[000118] On the other hand, the pitch and range of the first lateral contact pattern of the 302ay lens (302a1) and the second lateral contact pattern of the 302ay + 1 lens (302a2) are respectively determined in P2 and Q2, which are respectively greater than P1 and Q1, as shown in Figs. 7B and 8B. The pitch of the first and second side contact pins of the camera 202ay and 202ay + 1 (that is, a distance between the central geometric axes of these pins) is also determined in P2, in order to coincide with the pitch P2 of the first and second patterns side contact lens 302ay and 302ay + 1.
[000119] The P2 step and Q2 intervals are decided based on a precondition that the possible contact area of the pin of the first lateral contact pattern of the 302ay lens, where the first lateral contact pin of the 202ay camera makes contact, is WW greater than W. Therefore, the P2 step and Q2 interval are decided based on another precondition that the width of the first lateral contact pattern of the lens 302ay is L2 greater than L1. In addition, step P2 and interval Q2 are decided in order to satisfy the following conditions.
[000120] As a first condition, as shown in Fig. 9B, it is necessary that the first side contact pin of the 202ay camera does not make contact simultaneously with the first and second side contact patterns of the 302ay and 302ay + 1 lens, adjacent between during rotation of the interchangeable lens, for fixing and separating the lens. That is, it is necessary to determine the interval Q2 being greater than a width VV of the possible contact area of the WW pin (Q2> VV). In addition, P2 is greater than VV (P2> VV).
[000121] Fig. 9C shows a case in which the pitch and interval of the first and second lateral contact patterns of the lens 302ay and 302ay + 1, adjacent to each other, are established in P1 and Q1. In this case, the first side contact pin of the 202ay camera simultaneously makes contact with the first and second side contact patterns of the 302ay and 302ay + 1 lens.
[000122] As described above, contact (collision) of the side contact base of the lens 302 with the side contact pin of the camera 202a1 is likely to cause the tilting or deformation of the side contact pin of the camera 202a1. If the 202a1 side contact pin makes contact simultaneously with the DTEF terminal pattern, which is the first 302a1 lens side contact pattern and with the DGND terminal pattern, which is the second side contact pattern of the adjacent 302a2 lens to it, the following failures are caused. As mentioned above, the camera microcomputer 20 determines which type of interchangeable lens 100 is attached, based on the voltage value of the DTEF_IN terminal. If the 202a1 side contact pin makes contact with both the DTEF terminal pattern and the DGND terminal pattern simultaneously, the DTEF terminal pattern and the DGND terminal pattern are conducted together, which is likely to cause the camera microcomputer 20 make a wrong determination of the type (lens type) of interchangeable lens 100 attached. Since the camera microcomputer 20 determines the transmission voltage with the interchangeable lens 100 based on that determination result, the determination result indicating a different type of lens than that of the currently attached interchangeable lens, prevents the fixation of a adequate transmission voltage, which makes good communication impossible. Thus, this modality increases the interval between the first lateral contact pattern of the lens 302a1 and the second lateral contact pattern of the lens 302a2 adjacent to it, considering the inclination and deformation of the lateral contact pin of the camera 202a1.
[000123] As a second condition, it is necessary that a first side contact pattern of the 302ay + 1 lens does not simultaneously make contact with the first and second side contact pins of the 202ay and 202ay + 1 camera adjacent to each other.
[000124] Furthermore, as a third condition, it is necessary to satisfy the first and second conditions above, even if the distance between the first lateral contact patterns of the 302ay lens is narrowed due to its positional error.
[000125] Satisfaction of the first to third conditions makes it possible to avoid failures, such as short-circuiting the power source caused by simultaneous conduction of the first and second side contact patterns of the mutually adjacent lens 302ay and 302ay + 1 or the first and second side contact pins of the mutually adjacent camera 202ay and 202ay + 1.
[000126] Figs. 3A and 3B show steps P1 and P2 as angle bands θP1 and θP2 on the camera side and lens side contact bases 202 and 302 formed in a circular arc shape on the camera side and lens side supports 201 and 301. In addition, Fig. 3B shows the intervals Q1 and Q2 as angle bands θQ1 and θQ2 on the lateral contact base of lens 302 shaped in a circular arc formed on the lateral support of lens 301.
[000127] When considering a degree of rotation required for the bayonet coupling, in order to reduce the degree of rotation, it is essentially desirable to reduce the pitch of the side contact pins of the camera as much as possible, as long as the source short circuit power or the like can be avoided. However, it is necessary that the pitch, of the first side contact pin of the camera 202a1 and the second side contact pin of the camera 202a2 adjacent to it, consider, as mentioned above, the inclination and deformation of the first side contact pin of the camera 202a1, due to the contact (collision) of the side contact base of the lens 302. Thus, this mode increases the pitch of the first side contact pin of the camera 202a1 and the second side contact pin of the camera 202a2 adjacent to it, when compared with that of the other second side contact pins of the camera 202a2 to 202a9.
[000128] Although this modality describes the case where a first side contact lens pattern and a camera side contact pin are provided, a plurality of first lens side contact patterns can be provided along with a plurality of first pins side contact lens. In this case, as shown in Fig. 10, it is desirable to determine the step and the interval, respectively, between the first lateral contact pattern of the lens 302ay and the first lateral contact pattern of the lens 302ay 'adjacent to it, in P2 and Q2, and determining the pitch between the first 202ay side camera contact pin and the first 202ay side camera contact pin adjacent to it, in P2. The pitch and gap between the first and second mutually adjacent lens side contact patterns are set in P2 and Q2, and the pitch between the first and second mutually adjacent camera side contact pins is set in P2. However, it is not necessarily necessary that the pitch and range of the first and second mutually adjacent lens contact patterns are the same as those of the first mutually adjacent lens contact patterns. In other words, when the first step and interval are represented by P2a and Q2a, and the last step and interval are represented by P2b AND Q2b, they can have the following relationships:
[000129] P2a * P2b (where P1 <P2a).
[000130] Q2a * Q2b (where Q1 <Q2a).
[000131] In this case, the step between the first mutually adjacent lens contact side patterns and the step between the first and second mutually adjacent camera contact pins are respectively determined in P2a and P2b.
[000132] As described above, this modality employs the first and second side contact patterns of the lens and the first and second side contact pins of the camera that satisfy the following conditions (1) to (3). Under the following conditions, as mentioned above, P2 includes P2a and P2b, and Q2 includes Q2a and Q2b.
[000133] L1 <L2 (θL1 <θL2) ... (1)
[000134] P1 <P2 (θP1 <θP2) ... (2)
[000135] Q1 <Q2 (θQ1 <θQ2) ... (3)
[000136] Satisfaction of conditions (1) to (3) enables normal contact protection (electrical connection) of the first side contact pin of the camera and the first side contact pattern of the lens, to make contact even if the tilt or deformation is caused at the first side contact pin of the camera due to the hard contact (collision) of the side contact base of the lens with the side contact pin of the camera. Consequently, the communication error between the camera 10 and the interchangeable lens 100 and the failure of the camera 10 or the interchangeable lens 100, due to the short circuit of the power source, can be avoided.
[000137] Furthermore, as a condition for operating (or controlling) the time of attaching the interchangeable lens to the camera, it is desirable to satisfy a fourth condition that the LA distance, mentioned above, is shorter than or equal to the LB distance . In other words, it is desirable that at least one of the width L2, step P2 and interval Q2 be determined so that the connection of the DTEF terminal is established earlier than or simultaneously with that of the MIF terminal.
[000138] [The diameter of the side contact pin of the camera]
[000139] As described above, the 202ay camera's first side contact pin (202a1) is likely to be deformed, such as being bent, upon receiving the hard shock from the side contact base of the 302 lens in the in-contact support state. Such deformation can be suppressed by adjusting the diameter ϕD2 of the first side contact pin of the 202ay camera (202a1) to be greater than the diameter ϕD1 of the second side contact pin of the 202ay + 1 camera (202a2 to 202a9), as shown in Figs. 12A and 12B, to increase the rigidity of the 202ay camera's first side contact pin (202a1).
[000140] In other words, the diameter ϕD2 of the first side contact pin of the camera 202ay (202a1) and the diameter ϕD1 of the second side contact pin of the camera can be adjusted to satisfy the following condition (4):
[000141] ϕD1 <ϕD2 ... (4)
[000142] Satisfaction of condition (4) can produce the communication error and the short circuit of the power source, due to the deformation of the first side contact pin of the 202ay camera most likely to be caused.
[000143] It is not necessarily necessary to satisfy all the conditions described above (1) to (4); it is only necessary to satisfy at least one of the conditions (1), (2), and (4). Satisfaction of at least one of the conditions (1), (2), and (4) makes it possible to protect the normal contact of the first inclined or deformed camera's first contact pin and the first lens contact pattern. In addition, the satisfaction of condition (3) makes it possible to solve the short circuit problem of the energy source described above.
[000144] Furthermore, the satisfaction of the condition described above, that the LA distance is shorter than the LB distance (or the LB distance is greater than the LA distance), or the LA distance is equal to the LB distance, allows adjustment of the transmission voltage appropriate to the type of interchangeable lens attached to the camera before communication between the camera and the interchangeable lens is initiated. Such presetting of the appropriate transmission voltage makes it possible to prevent communication error due to improper transmission voltage.
[000145] Next, a description will be made of a relationship between the camera side bayonet claw 201a, the lens side bayonet claw 301a, the camera side contact pins and the lens side contact patterns with reference to Figs . 2A, 2B, 3A, 3B and 16.
[000146] Figs. 3A, 3B and 16 show angle bands in the circumferential support direction (relative rotation direction) where the side bayonet claw of the camera 201a and the side bayonet claw of the lens 301a are provided on the side support of the camera 201 and on the side support lens 301 as θCB and θLB, respectively.
[000147] In the side support of camera 201, the side contact pins of camera 202a1 to 202a4, including the first side contact pin of camera 202a1 for the DTEF terminal, are arranged within the angle range θCB. In other words, on the side support of the camera 201, the side contact pins of the camera 202a1 to 202a4 are arranged in a position that overlaps the bayonet grip of the camera 201a in the radial direction of the support. In addition, on the side support of lens 301, the side contact patterns of lens 302a1 and 302a2, including the first side contact pattern of lens 302a1 for the DTEF terminal, are arranged within the angle range θLB. In other words, on the lateral support of the lens 301, the lateral contact patterns of the lens 302a1 and 302a2 are arranged in a position that overlaps the lateral bayonet grip of the lens 301a in the radial direction of the support. As described above, at least the first side camera contact pin 202a1 and the first side lens contact surface 302a1 are provided adjacent (along or side with) the side lens bayonet claws and side camera 201a and 301a such that contact of the first camera side contact pin 202a1 and the first lens side contact surface 302a1 is sufficiently maintainable.
[000148] Such an arrangement relationship provides, in the coupling termination state, rigid coupling of parts of the camera side and lens side supports, 201 and 301, around the camera side contact pins 201a1 and 202a2 and the patterns side contact lens 302a1 to 302a2 by fitting the camera side bayonet and lens side 201a and 301a. Therefore, even if the external force acts on the interchangeable lens 100 in a direction where the interchangeable lens 100 is curved with respect to camera 10, at least the contact between the first side contact pin of camera 202a1 and the first side contact pattern lens 302a1 is maintained, which prevents contact between them.
[000149] The DTEF terminal, consisting of the side contact pin of the camera 202a1 and the first side contact pattern of the lens 302a1, is a more important terminal regarding the adjustment of the transmission voltage between the camera 10 and the interchangeable lens 100, depending interchangeable lens type 100 when compared to other communication terminals. Therefore, as described above, the DTEF terminal (ie the first side contact pin of the camera 202a1 and the first side contact pattern of the lens 302a1) are provided so that their contact is initiated earlier than the contact of others terminals during the lens attachment process.
[000150] Even if contact failure is temporarily caused at the other terminals, communication can be recovered by redoing the transmission. However, since the DTEF terminal is used to decide the transmission voltage itself (in addition to an interchangeable lens drive voltage), the unstable contact of this DTEF terminal causes, for example, erroneous communication and erroneous operation of the interchangeable lens due to incorrect transmission, which deteriorates the reliability of the camera system.
[000151] On the other hand, this mode guarantees contact reliability of the DTEF terminal (202a1 and 302a1), even if the external force acts on the interchangeable lens. Therefore, camera 10 can make a correct determination of the type of interchangeable lens 100 and therefore can adjust an appropriate transmission voltage for the interchangeable lens 100.
[000152] As described above, this modality provides the first lateral contact pattern of the lens and the first lateral contact pin of the camera constituting the lens type determination terminal (DTEF terminal) within the angle range in which the bayonet is provided on each support. Consequently, this modality avoids contact failure between the first lateral contact pattern of the lens and the first lateral contact pin of the camera, which allows the camera to correctly determine the type of lens.
[000153] Although the above modality describes the case in which the camera determines the type of interchangeable lens attached to the camera based on the voltage of the DTEF terminal, the lens type determination can be made based not on a voltage, but on a signal communicated, such as a digital signal.
[000154] [Mode 2]
[000155] Figs. 11A to 11C show, as a second embodiment of the present invention, a case satisfying conditions (2) and (3) described above, but not satisfying conditions (1) and (4). In this embodiment, the P2 step and Q2 interval, between the first and second mutually adjacent lens contact patterns 302ay and 302ay + 1, are greater than the P1 step and the Q1 interval between the second lens contact patterns mutually adjacent 302ax and 302ax + 1. In addition, the pitch P2 between the first and second mutually adjacent camera contact pins 202ay and 202ay + 1 is also greater than the P1 pitch between the second mutually adjacent camera contact pins 202ax and 202ax + 1.
[000156] However, the width of the first lateral contact pattern of the 302ay lens is equal to L1, which is the width of the second lateral contact pattern of the 302ax lens (302ay + 1). However, L1 in this mode is set to be greater than L1 shown in Mode 1, and is set to be larger than the possible WW pin contact area of the first 302ay lens side contact pattern, where the first 202ay camera side contact can make contact.
[000157] In addition, the diameters of the first and second side contact pins of the 202ay and 202ay + 1 camera (202ax and 202ax + 1) are all the same as ϕD1.
[000158] Also, in this case, the normal contact of the side contact pin of the camera is tilted or deformed and the first side contact pattern of the lens can be stuck, which can avoid communication error between the camera and the interchangeable lens and the short-circuit of the power source.
[000159] In addition, as another modality, in a case satisfying condition (2), but not satisfying conditions (1), (3) and (4), the normal contact of the first inclined camera side contact pin or deformed and the first side contact pattern of the lens can be stuck, which can prevent the communication error between the camera and the interchangeable lens.
[000160] Although each of the above modes describes the case of adjusting the heights of the first and second L3 side contact patterns, their heights can be different from each other.
[000161] Although the present invention has been described with reference to the exemplary embodiments, it should be understood that the invention is not limited to the exemplary embodiments described. The scope of the following claims is to be in accordance with the broadest interpretation, in order to cover all such modifications, structures and equivalent functions.
[000162] This application claims the benefit of Japanese Patent Application Nos. 2012-150961, deposited on July 5, 2012, and 2012-085190, 2012-085223 and 2012-085426 deposited on April 4, 2012, which are hereby incorporated by reference in their entirety.

权利要求:
Claims (39)
[0001]
1. Camera accessory (100) separately attached to a camera (10), the camera accessory comprising: an accessory holder (301) to be separably attached to a camera holder (201) provided on the camera, the accessory holder being provided with accessory bayonet claws (301a) and being brought, by relative rotation with the camera support, from a first state, in which each of the accessory bayonet claws is inserted between the camera's bayonet claws (201a ) provided on the camera bracket, for a second state, in which the accessory bayonet claws engage with the camera bayonet claws to complete the attachment of the camera and accessory brackets; an accessory contact retaining part provided in the accessory holder; and a plurality of at least seven electrical contact surfaces arranged along a direction of rotation of the accessory and camera supports and retained by the accessory contact retaining part; characterized by the fact that the plurality of electrical contact surfaces includes a first electrical contact surface to emit a predetermined voltage corresponding to a type of the camera accessory in the second state, thus indicating the type of the camera accessory, a sixth contact surface electrical provided to receive a supply of power from the camera, and a seventh electrical contact surface provided for a ground connection corresponding to the sixth electrical contact surface, where the seventh electrical contact surface is disposed between the first contact surface electrical and the sixth electrical contact surface, where one of the accessory bayonet claws is positioned in a phase of the first electrical contact surface in the direction of rotation of the accessory and camera brackets, and in which any of the bayonet claws accessory is not positioned on a phase of the sixth electrical contact surface in the direction of rotation of the accessory and camera brackets.
[0002]
2. Camera accessory according to claim 1, characterized in that the accessory bayonet jaw is provided adjacent to the first electrical contact surface, such that the contact of the first electrical contact surface with a camera contact pin (202a1) provided in the camera holder is sufficiently maintainable.
[0003]
3. Camera accessory according to claim 1, characterized by the fact that the first electrical contact surface is provided next to the accessory bayonet claw.
[0004]
4. Camera accessory according to claim 1, characterized by the fact that the first electrical contact surface is provided side by side with the accessory bayonet claw.
[0005]
Camera accessory according to any one of claims 1 to 4, characterized in that: a plurality of camera contact pins (202an) including a first camera contact pin (202a1, 202ay) that makes electrical contact with the first electrical contact surface (302a1) in the second state are provided in the camera holder, where the first camera contact pin contacts the electrical contact retaining part in the first state, where the plurality of electrical contact surfaces includes second electrical contact surfaces (302a2-9, 302ay + 1, 302ax, 302ax + 1) that do not contact the first camera pin in the second state, and in which at least one of the following conditions is satisfied along the direction of rotation : (a) a step (P2) between the first electrical contact surface (302ay) and the second electrical contact surface (302ay + 1) adjacent to it is greater than one step (P1) between the second electrical contact surfaces (302ax, 302ax + 1 ) adjacent to each other; (b) an interval (Q2) between the first electrical contact surface and the second electrical contact surface adjacent to it is greater than an interval (Q1) between the second electrical contact surfaces adjacent to each other; and (c) a width (L2) of the first electrical contact surface is greater than a width (L1) of the second electrical contact surface.
[0006]
6. Camera accessory according to claim 5, characterized by the fact that: the plurality of electrical contact surfaces includes a third electrical contact surface (302a9) used for detecting the attachment of the camera accessory to the camera, and in which the first electrical contact surface (302a1) is provided so that, during the relative rotation of the accessory holder with the camera holder from the first state to the second state, the contact of the first electrical contact surface with the first contact pin camera (202a1) is initiated earlier than or simultaneously with the beginning of contact of the third electrical contact surface with a third camera contact pin (202a9) corresponding to the third electrical contact surface.
[0007]
7. Camera accessory according to claim 6, characterized by the fact that along the direction of rotation, a distance (LA) between (a) a part of the first electrical contact surface (302a1), where contact with the camera's first contact pin (202a1) is initiated during the relative rotation of the first state to the second state and (b) a part of the third electrical contact surface (302a9), where contact with the third contact pin of the camera (202a9) is started during the relative rotation from the first state to the second state, it is shorter than or equal to a distance (LB) between the first contact pin of the camera and the third contact pin of the camera.
[0008]
8. Camera accessory according to any one of claims 1 to 7, characterized in that the plurality of electrical contact surfaces includes a fourth electrical contact surface (302a8), such as the electrical energy contact surface, provided for receive, from the camera, a supply of the power source for communication between the camera and the camera accessory.
[0009]
9. Camera accessory according to claim 8, characterized in that the plurality of electrical contact surfaces includes a fifth electrical contact surface (302a2), as an electrical earth contact surface, provided, together with the fourth electrical contact surface, for earth connection, and where the fifth electrical contact surface is disposed between the first electrical contact surface and the fourth electrical contact surface.
[0010]
10. Camera accessory according to any one of claims 1 to 9, characterized in that the sixth electrical contact surface (302a7) is provided to receive, from the camera, a supply of energy source to drive an actuator provided in the camera accessory.
[0011]
11. Camera accessory according to any one of claims 1 to 10, characterized in that the plurality of electrical contact surfaces includes an eighth electrical contact surface (302a4.5) provided for communicating data with the camera.
[0012]
12. Camera (10) to which a camera accessory (100) is separably attached, the camera comprising: a camera holder (201) to be separably coupled with an accessory holder (301) provided in the camera accessory, the holder camera being provided with camera bayonet claws (201a) and being brought, by relative rotation with the accessory holder, from a first state, in which each of the accessory bayonet claws (301a) provided in the accessory holder, is inserted between the camera's bayonet claws, for a second state, in which the camera's bayonet claws engage the accessory bayonet claws to complete the coupling of the camera and accessory brackets; a contact retaining portion of the camera (202) provided in the camera holder; and a plurality of camera contact pins (202an) disposed along a direction of rotation of the accessory and camera supports, and retained by the contact retaining part of the camera; and a determination unit configured to determine a type of camera accessory connected to the camera, depending on a predetermined voltage of a signal emitted by the camera accessory, where the camera contact retaining part retains the plurality of contact pins of mobile camera in a direction of projecting and retracting with respect to the camera contact retaining part, characterized by the fact that the plurality of at least seven camera contact pins includes a first used camera contact pin (202a1) for determining the type of camera accessory attached to the camera, a sixth camera contact pin provided for supplying power to the camera accessory and a seventh camera contact pin, provided for a ground connection corresponding to the sixth camera pin camera contact, provided to supply the power source, in which the seventh contact pin of the camera is disposed between the first contact pin of the camera and the sixth contact pin that of the camera, and in which one of the camera's bayonet claws is positioned in a phase of the first camera contact pin in the direction of rotation of the accessory and camera brackets, and in which any of the camera's bayonet claws does not it is positioned on a phase of the camera's sixth contact pin in the direction of rotation of the accessory and camera brackets.
[0013]
13. Camera according to claim 12, characterized in that: the accessory support is provided with an electrical contact retaining part, and a plurality of electrical contact surfaces (302an), including a first electrical contact surface (302a1) that makes electrical contact with the camera's first contact pin in the second state, are retained by the electrical contact retaining part, where the camera's first contact pin (202a1, 202ay) contacts the contact retaining part electrical in the first state, where the plurality of camera contact pins includes second camera contact pins (202a2-9, 202ay + 1, 202ax, 202ax + 1) that do not contact the electrical contact retaining part in the first state , in which at least one of the following conditions is satisfied along the direction of rotation: (a) one step (P2) between the first contact pin of the camera (202ay) and the second contact pin of the camera (202ay + 1) adjacent to it is larger than one pa sso (P1) between the second contact pins of the camera (202ax, 202ax + 1) adjacent to each other; and (b) when a plurality of the first camera contact pins are provided, a step between the plurality of first camera contact pins adjacent to each other is greater than the step between the second camera contact pins adjacent to each other.
[0014]
14. Camera according to claim 13, characterized by the fact that: the plurality of camera contact pins includes a third camera contact pin (202a9) used for detecting the attachment of the camera accessory to the camera, and in which the first contact pin of the camera is provided so that, during the relative rotation of the camera holder with the accessory holder from the first state to the second state, the contact of the first camera contact pin (202a1) with the first surface electrical contact (302a1) is initiated earlier than or simultaneously with the beginning of contact of the third contact pin of the camera with a third electrical contact surface (302a9) corresponding to the third camera contact pin.
[0015]
15. Camera according to claim 14, characterized by the fact that along the direction of rotation, a distance (LB) between the first contact pin of the camera (202a1) and the third contact pin of the camera (202a9) is greater than or equal to a distance (LA) between (a) a part of the first electrical contact surface (302a1), where contact with the camera's first contact pin is initiated during the relative rotation of the first state to the second state and (b) a part of the third electrical contact surface (302a9), where contact with the camera's third contact pin is initiated during the relative rotation of the first state to the second state.
[0016]
16. Camera according to any one of claims 12 to 15, characterized by the fact that the plurality of camera contact pins includes a fourth camera contact pin (202a8), such as the power camera contact pin, provided to supply the camera accessory with a power source for communication between the camera and the camera accessory.
[0017]
17. Camera according to claim 16, characterized by the fact that the plurality of camera contact pins includes a fifth camera contact pin (202a2) provided, as a ground camera contact pin, together with the fourth pin contact lens, for ground connection, and where the fifth contact pin of the camera is disposed between the first contact pin of the camera and the fourth contact pin of the camera.
[0018]
18. Camera according to any one of claims 12 to 17, characterized in that the plurality of camera contact pins includes a sixth camera contact pin (202a7), such as the power camera contact pin, provided to supply the camera accessory with a power source to drive an actuator provided in the camera accessory.
[0019]
19. Camera according to claim 18, characterized by the fact that the plurality of camera contact pins includes a seventh camera contact pin (202a6), as a ground contact pin, provided, together with the sixth pin contact lens, for ground connection, and where the seventh contact pin of the camera is disposed between the first contact pin of the camera and the sixth contact pin of the camera.
[0020]
20. Camera according to any one of claims 12 to 19, characterized in that the plurality of camera contact pins includes an eighth camera contact pin (202a4,5) provided for communicating data with the camera accessory.
[0021]
21. Camera accessory (100) comprising: an accessory holder to be separably coupled with a camera (10), the accessory holder (301) including accessory bayonet claws (301a); and a plurality of electrical contact surfaces (302an) provided on the accessory support, in a circumferential direction, characterized by the fact that the plurality of at least seven electrical contact surfaces includes a first electrical contact surface (302a1) to emit a predetermined voltage corresponding to a type of camera accessory in a second state, thus indicating the type of camera accessory, a sixth electrical contact surface provided to receive a supply of power from the camera and a seventh electrical contact surface provided for a ground connection, corresponding to the sixth electrical contact surface, where the seventh electrical contact surface is arranged between the first electrical contact surface and the sixth electrical contact surface, where one of the accessory bayonet claws is positioned in a phase in which the first electrical contact surface is arranged in the circumferential direction, and in which any One of the accessory bayonet claws is not positioned in a phase in which the sixth electrical contact surface is arranged in the circumferential direction.
[0022]
22. Camera accessory according to claim 21, characterized in that the accessory bayonet jaw is provided adjacent to the first electrical contact surface, such that the contact of the first electrical contact surface with a camera contact pin (202a1) provided in the camera is sufficiently maintainable.
[0023]
23. Camera accessory according to claim 21, characterized by the fact that the first electrical contact surface is provided next to the accessory bayonet jaw.
[0024]
24. Camera accessory according to claim 21, characterized in that the first electrical contact surface is provided side by side with the accessory bayonet jaw.
[0025]
25. Camera accessory according to any one of claims 1 to 11, characterized in that the first electrical contact surface is connected with a resistor having a predetermined resistance value corresponding to the type of the camera accessory.
[0026]
26. Camera according to any one of claims 12 to 20, characterized in that the voltage of a signal for communication with the camera accessory is determined depending on the type of camera accessory determined by the determining unit.
[0027]
27. Camera according to claim 21, characterized in that it comprises: the first electrical contact surface is connected with a resistor having a predetermined resistance value corresponding to the type of the camera accessory.
[0028]
28. Camera accessory according to claim 1, characterized by the fact that the first electrical contact surface is arranged within an angle band where the accessory bayonet jaw is provided in a circumferential direction of the accessory holder.
[0029]
29. Camera accessory, according to claim 28, characterized by the fact that the sixth electrical contact surface is provided to receive, from the camera, a supply of power source to drive an actuator provided in the camera accessory.
[0030]
30. Camera accessory, according to claim 11, characterized by the fact that the sixth electrical contact surface is provided to receive, from the camera, a supply of energy source to drive an actuator provided in the camera accessory, and in that the eighth electrical contact surface is disposed between the first electrical contact surface and the sixth electrical contact surface.
[0031]
31. Camera accessory according to claim 30, characterized by the fact that the seventh electrical contact surface is provided, together with the sixth electrical contact surface, for an earth connection, and in which the seventh contact surface electrical is arranged between the sixth electrical contact surface and the eighth electrical contact surface.
[0032]
32. Camera, according to claim 12, characterized by the fact that the first contact pin of the camera is disposed within an angle range where the camera's bayonet clamp is provided in a circumferential direction of the camera support.
[0033]
33. Camera, according to claim 32, characterized by the fact that the sixth contact pin of the camera is provided to supply the camera accessory with a power source to drive an actuator provided in the camera accessory, and in which the the camera's sixth contact pin is disposed outside the angle range where the camera's bayonet claw is provided in the circumferential direction of the camera mount.
[0034]
34. Camera, according to claim 20, characterized by the fact that the sixth contact pin of the camera is provided to supply the camera accessory with a power source to drive an actuator provided in the camera accessory, and in which the eighth camera contact pin is arranged between the first camera contact pin and the sixth camera contact pin.
[0035]
35. Camera, according to claim 34, characterized by the fact that the seventh contact pin of the camera is provided, next to the sixth contact pin of the camera, for a ground connection, and in which the seventh contact pin of the camera camera is arranged between the sixth contact pin of the camera and the eighth contact pin of the camera.
[0036]
36. Camera accessory according to claim 21, characterized by the fact that the first electrical contact surface is arranged within an angle band where the accessory bayonet jaw is provided in a circumferential direction of the accessory holder.
[0037]
37. Camera accessory, according to claim 36, characterized by the fact that the sixth electrical contact surface is provided to receive, from the camera, a supply of energy source to drive an actuator provided in the camera accessory, and in that the sixth electrical contact surface is arranged outside the angle range where the accessory bayonet claw is provided in the circumferential direction of the accessory holder.
[0038]
38. Camera accessory, according to claim 21, characterized by the fact that the sixth electrical contact surface is provided to receive, from the camera, a power source to drive an actuator provided in the camera accessory and an eighth surface of electrical contact provided to communicate data with the camera, and in which the eighth electrical contact surface is arranged between the first accessory contact surface and the sixth accessory contact surface.
[0039]
39. Camera accessory according to claim 38, characterized by the fact that the seventh electrical contact surface is provided, along with the sixth electrical contact surface, for a ground connection, and in which the seventh electrical contact surface is disposed between the sixth electrical contact surface and the eighth electrical contact surface.

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法律状态:
2015-06-23| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|

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2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2020-02-04| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2020-07-21| B09A| Decision: intention to grant|

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2020-12-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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JP2012085426|2012-04-04|

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JP2012-085223|2012-04-04|

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JP2012085190|2012-04-04|

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JP2012085223|2012-04-04|

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JP2012-085426|2012-04-04|

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JP2012-085190|2012-04-04|

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JP2012-150961|2012-07-05|

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JP2012150961A|JP5955136B2|2012-07-05|2012-07-05|Camera accessories and cameras|

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