• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A zoom driving apparatus of a camera which performs a zoom operation step by step to improve the accuracy and speed of a zoom operation. The zoom driving apparatus according to the present invention displays a symbol corresponding to a zoom linking distance of a barrel step by step and a predetermined symbol as a reference point. Dial zoom switch for setting the zoom interlocking distance by matching the data, a data circuit for storing specific data corresponding to the symbol displayed at the step, and receiving data from the data circuit to perform a zoom operation. It includes a control unit for controlling to move forward or backward step by step, and a drive motor for generating power in accordance with the operation of the control unit. Accordingly, the user can easily set the lens magnification to be photographed using the dial zoom switch, and the controller performs the zooming step by step to improve the moving speed between the steps of the zooming operation and to perform the zooming operation more quickly and accurately. It can be implemented.
    公开号:KR19990060028A
    申请号:KR1019970080246
    申请日:1997-12-31
    公开日:1999-07-26
    发明作者:한경언
    申请人:유무성；삼성항공산업 주식회사；
    IPC主号:
    专利说明:

    Camera zoom drive
    The present invention relates to a zoom driving apparatus of a camera, and more particularly, to divide the zoom operation of the camera into a finite step to increase the moving speed between the steps and perform the zoom operation step by step to improve the speed and accuracy of the zoom operation. It relates to a zoom driving device of a camera.
    In general, the camera is equipped with a zoom lens to shoot or reduce the image of the subject to be photographed arbitrarily, a zoom lens that performs this function is usually a plurality of lens groups fixed to the barrel assembly and the barrel assembly is mounted on the camera body The zoom operation is performed by changing the lens magnification by moving forward or backward.
    This zooming operation is usually provided with a tele switch and a wide switch separately on the camera body, and when a user presses any one of the switches, the driving motor is operated while the switch is pressed to open the barrel assembly barrel. By moving forward or backward.
    FIG. 6 is a block diagram illustrating a zoom driving apparatus of a camera according to the prior art, and is electrically connected to a telephoto switch S1 and a wide angle switch S2 that form separate independent switches, and to the switches S1 and S2. Control by the control unit 1 for controlling the zoom operation, the motor drive circuit 3 for controlling the driving of the drive motor 5 in response to the signal of the control unit 1, and the control of the motor drive circuit 3; And a drive motor 5 for generating power.
    When a user presses any one of the telephoto switch (S1) and the wide-angle switch (S2) to implement the lens magnification to be photographed, the signal of the switch is provided to the controller 1, the controller 1 is built-in The operation is performed by a program to control the motor driving circuit 3, and the motor driving circuit 3 controls the rotation direction and the power generation time of the driving motor 5 according to the calculation of the controller 1.
    That is, when the user presses the telephoto switch S1, the control unit 1 receives a signal from the telephoto switch S1 and instructs the motor drive circuit 3 to forward rotate the driving motor 5, and the user switches the telephoto switch S1. The driving motor 5 generates power during the time for pressing), rotates the gear assembly interlocked with the driving motor 5, and the encoder gear meshing with the barrel rotates forward to rotate the barrel while the camera body rotates. The lens magnification is increased by advancing relative to.
    When the user presses the wide angle switch S2 in the same manner as described above, the driving motor 5 generates the reverse rotational power while rotating the gear assembly while pressing the switch S2, and the encoder gear reverses the rotation. Retracting the barrel of the barrel assembly with respect to the camera body changes the lens magnification to a low magnification.
    However, in the conventional camera zoom driving apparatus, the driving motor operates only while the user presses the switch to move the barrel forward or backward. Therefore, when the zooming operation is performed quickly, the user moves the barrel to the position where the desired lens magnification is achieved through the switch operation. There is a problem that is difficult to stop exactly.
    In other words, in order to implement the lens magnification desired by the user at the initial wide state set when the camera cap is opened, the telescopic switch is pressed to advance the barrel. It does not stop the switch and stops the switch before passing or reaching the point.
    Therefore, the user needs to repeat the switch operation several times until the desired lens magnification is realized by manipulating the wide angle switch or the telephoto switch again.
    In addition, when the zooming operation of the camera is slow, the user can more accurately position the barrel to a point to be photographed, but there is a problem that the time required for the zooming operation increases and power consumption increases accordingly.
    Therefore, the present invention has been made to solve the above problems, an object of the present invention is to divide the zoom operation of the camera into a finite number of steps to increase the moving speed between the steps and to perform the zoom operation step by step to improve the speed and accuracy of the zoom operation. It is to provide a zoom driving device of the camera that can be improved.
    In order to achieve the above object, the present invention provides a zoom driving apparatus for a camera which performs a zoom operation by moving a barrel assembly forward or backward with respect to a body part by operating a zoom switch, wherein the zoom driving device is a zoom linkage of the barrel assembly. A zoom switch for displaying a symbol corresponding to a distance step by step and matching a predetermined symbol with a reference point to set a predetermined zoom linking distance, and data for generating a specific data signal corresponding to the zoom linking distance set by the zoom switch A control unit configured to receive data from the data circuit and perform calculation with an embedded program to determine whether the zoom operation is to be moved forward or backward, and to generate power of forward or reverse rotation under the control of the controller. Drive motor, the drive motor and the barrel of the barrel assembly is installed in conjunction with the power of the drive motor The barrel and provides a zoom drive device for a camera comprising a gear assembly to the forward or backward while being rotated by.
    Accordingly, the zoom operation can be performed more quickly and accurately, and the lens magnification to be photographed can be more easily implemented.
    1 is a plan view of a camera having a zoom driving device according to the present invention.
    2 is a detailed perspective view of part A of FIG.
    3 is a block diagram of a zoom driving apparatus according to the present invention;
    4 is a flowchart illustrating an operation of a control unit of a zoom driving apparatus according to the present invention.
    5 is a schematic plan view of some parts of the camera.
    6 is a block diagram of a zoom driving apparatus according to the prior art;
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a plan view of a camera having a zoom driving apparatus according to the present invention, and FIG. 2 is an enlarged perspective view of part A of FIG. 1, wherein the zoom driving apparatus of a camera newly implemented by the present invention is a barrel assembly as shown. It provides a zoom switch 4 for displaying a numerical value indicating the zoom linking distance of the step by step and matching the predetermined value to the reference point (2) to allow the user to set the zoom linking distance.
    The zoom switch 4 is a dial type, which is formed in a disc shape and is configured to easily rotate by a user's manipulation by placing most of the disc including a rotating shaft inside the camera body and exposing a portion of the disc to the outside of the body. .
    In addition, the zoom switch 4 displays a numerical value representing the zoom interlocking distance of the barrel assembly on the circumferential surface of the disc in 5 mm units so that the user indicates the zoom interlocking distance to be realized by rotating the zoom switch 4 as a reference point. To (2).
    The dial zoom switch 4 may be implemented in various embodiments other than the illustrated embodiment, which displays a symbol or number corresponding to the zoom linkage distance on the circumferential surface of the zoom switch or displays the symbol or number in the camera. A method of displaying the reference point on the body and the perimeter of the switch, or by placing the entire disc of the zoom switch parallel to the body on the outer surface of the camera body and displaying a predetermined symbol or number on one side of the disc so that the user Embodiments in which predetermined symbols or numbers coincide with the reference point by rotating the same are also possible.
    As described above, the zoom switch 4, which can be implemented through various embodiments, sets a predetermined zoom interlocking distance to allow the following components to perform the zoom operation. FIG. 3 is a zoom driving apparatus according to the present invention. As a block diagram of a zoom drive device, a zoom drive device newly implemented by the present invention includes a data circuit 6 for generating a specific data signal corresponding to a numerical value set by the zoom switch 4, and the data circuit 6; The control unit 8 controls the zoom operation step by step by receiving the data from the embedded program and the motor driving circuit 10 controlling the driving motor 12 by the operation of the control unit 8. Include.
    The data circuit 6 holds respective unique data corresponding to all of the stepwise displayed values indicated by the zoom switch 4, which is shown in Table 1 below. It holds unique digital data corresponding to each zoom linkage distance.
    Zoom interlocking distance (mm)data 400 45One 5010 5511 60100 65101 70110 75111 801000 851001 901010
    In this way, the data circuit 6 retains unique data according to the step of the zoom linkage distance and provides the data to the controller 8, and the data is provided by the user by the initial designation value of the zoom switch 4 and by the user. All data corresponding to the set conversion numerical range are sequentially provided to the controller 8.
    This means that if the initial designation value of the zoom switch 4 is 50 and the user operates the zoom switch 4 to match 65 with the reference point 2, the data circuit 6 will have all data corresponding to 50 to 65 sections, i.e. 0011, 0100, and 0101 data are sequentially provided to the controller 8.
    In addition, the control unit 8 performs the same operation for each data provided by the data circuit 6 to perform a zoom operation by one step. FIG. 4 is an operation flowchart of the control unit. When the zoom switch 4 is rotated to coincide with the reference point 2 (S100), the data circuit 6 provides the controller 8 with the first data between the initial value and the set numerical interval, thereby controlling the controller 8. Reads the converted data (S110).
    In operation S120, it is determined whether the stored initial data and the converted data value are equal to each other, and if the initial data and the converted data are not the same, the size of the initial data and the converted data is determined (S130).
    The size of the initial data and the converted data is determined (S130). If the initial data is smaller than the converted data, zooming is performed in one step (S140). If the initial data is larger than the converted data, zooming is performed in one step (S150). ).
    After performing the zoom 1 step forward (S140) or zoom 1 step backward (S150) process, the converted data is stored (S160), and the converted data is initialized, and when the return (S160) is entered, the zoom 1 step operation is completed. do.
    In this way, the controller 8 compares the stored initial data with the converted data value set by the zoom switch 4 and advances or backwards the zoom operation by one step.
    As described above, if the initial value of the zoom switch 4 is 50 and the user rotates the zoom switch 4 to match 65 to the reference point 2, the data circuit 6 controls the data corresponding to 55. (8), the control section 8 performs the zoom first step forward command, and then the data circuit 6 provides data corresponding to 60 and 65 so that the control section 8 provides the zoom first step forward command. It will run twice.
    As such, when the control unit 8 issues a forward or backward command of the zoom operation step by step, the motor driving control unit 10 rotates the driving motor 12 forward or reverse in accordance with the operation of the control unit 8 so that The barrel is moved forward or backward, as shown in FIG. 5. The camera includes a drive motor 12 for generating power, a barrel assembly 14 for mounting a lens group, and the drive motor 12 and a barrel. The gear assembly 16 is installed in association with the assembly 14 and consists of a plurality of gears.
    The barrel assembly 14 is a combination in which a plurality of barrels 18 are organically coupled, and the barrel assembly 14 includes a rotator 20 as an example thereof, and the barrel assembly 14 includes a barrel according to the rotation of the rotator 20. 18) they organically move forward or backward to perform the zoom operation.
    Since the encoder gear 22 is engaged with the gear groove 24 of the rotator 20 among the plurality of gears of the gear assembly 16, the power of the driving motor 12 is rotated through the gear assembly 16. 20) to advance or retract the barrels 18.
    When the controller 8 performs the operation to perform the zoom 1 step forward (S140) command (B arrow), the motor driving circuit 10 controls the drive motor 12 to rotate forward by 1 step to drive the motor 12. ) Generates the power of the forward rotation, and the encoder gear 22 of the gear assembly 16 also rotates the rotator 20 while forward rotation to advance the barrel 18 by one step.
    When the control unit 8 performs the zoom 1 step backward (S150) command (C arrow), the driving motor 12 generates power of 1 step reverse rotation to reverse the encoder gear 22 of the gear assembly 16. The rotator 20 rotates backward by one step in conjunction with the encoder gear 22.
    As described above, the present invention provides a zoom switch that allows the user to easily set the zoom linkage distance, and divides the zoom operation into finite steps to perform step by step. It is.
    权利要求:
    Claims (10)
    [1" claim-type="Currently amended] A zoom driving device of a camera which performs a zooming operation by moving a barrel assembly forward or backward with respect to a body part by operating a zoom switch, wherein the zoom driving device displays a symbol corresponding to the zoom linkage distance of the barrel assembly step by step and displays a reference point. A zoom switch for setting a predetermined zoom linking distance by matching a predetermined symbol with the A data circuit for generating a specific data signal corresponding to a zoom linkage distance set by the zoom switch; A control unit which receives data from the data circuit and performs operations with an embedded program to determine whether the zoom operation is advanced or backward; A drive motor generating power of forward rotation or reverse rotation under control of the controller; And a gear assembly installed in association with the barrel of the driving motor and the barrel assembly to rotate the power of the driving motor to move the barrel forward or backward.
    [2" claim-type="Currently amended] The zoom driving apparatus of claim 1, wherein the zoom switch is formed in a disk shape and displays a numerical value representing the zoom linking distance on one surface or a circumferential surface in steps, and rotates according to a user's operation.
    [3" claim-type="Currently amended] The zoom driving apparatus of claim 1, wherein the data circuit holds respective unique data corresponding to all of the symbols representing the zoom linkage distance displayed step by step.
    [4" claim-type="Currently amended] 4. The zoom driving apparatus of claim 3, wherein the data circuit sequentially provides all of the data signals corresponding to the initial designation symbol of the zoom switch and the conversion symbol section set by the user to the controller.
    [5" claim-type="Currently amended] The zoom control apparatus of claim 1, wherein the controller divides the zoom operation into finite steps according to the step of the zoom linkage distance displayed step by step, and controls the rotation of the drive motor so that the driving motor sequentially performs the steps step by step. Drive system.
    [6" claim-type="Currently amended] The zoom driving apparatus of claim 5, wherein the controller determines whether the zoom operation is forward and backward by determining the stored initial data and the magnitude of the converted data provided by the data circuit.
    [7" claim-type="Currently amended] The zoom driving apparatus of claim 6, wherein the control unit compares the stored initial data with the size of the converted data provided by the data circuit, and determines advancement of the first step of the zoom operation when the stored initial data is smaller than the converted data.
    [8" claim-type="Currently amended] The zoom driving apparatus of claim 6, wherein the control unit compares the stored initial data with the size of the converted data provided by the data circuit to determine the first step of the zoom operation when the stored initial data is larger than the converted data.
    [9" claim-type="Currently amended] The zoom driving apparatus of claim 6, wherein the controller determines whether the zoom operation is one step forward or backward, and then stores the converted data and converts the converted data into initial data.
    [10" claim-type="Currently amended] The zoom driving apparatus of claim 6, wherein the controller receives the continuous data provided by the data circuit as each new converted data and repeatedly performs the same operation process.
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    同族专利:
    公开号 | 公开日
    KR100529625B1|2006-02-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-12-31|Application filed by 유무성, 삼성항공산업 주식회사
    1997-12-31|Priority to KR1019970080246A
    1999-07-26|Publication of KR19990060028A
    2006-02-02|Application granted
    2006-02-02|Publication of KR100529625B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970080246A|KR100529625B1|1997-12-31|1997-12-31|Camera zoom drive|
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