• 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 multiple photoflash lamp unit is connectable to a camera in different orientations in each of which a different group of the lamps is relatively farthest from the camera lens axis. The lamps are arranged so that in any of the orientations of the unit with respect to the camera, only the group of lamps relatively farthest from the lens axis will be flashed. This reduces the "red-eye" effect that can occur when the flashing lamp is close to the lens axis, undesirably causing a red coloration of the pupils of eyes of people in the picture.
    公开号:SU965373A3
    申请号:SU752110885
    申请日:1975-03-06
    公开日:1982-10-07
    发明作者:Хейнц Вебер Курт
    申请人:Дженерал Электрик Компани (Фирма)；
    IPC主号:
    专利说明:

    (54) LAMP FLASH
    The invention relates to the field of {Optical Instrument Engineering, and in particular to multiple-action flash units for cameras containing software control schemes in the field, which allows the number of electrical connections of the flash to the camera to be minimized, and this, in turn, is not limited on the design of the camera itself. It is known a device of flash-flashes mounted on a camera to illuminate a photographic object 1. However, when photographing with a flash lamp, located near the camera lens, the effect of reddening the eyes of the person being photographed takes place. This disadvantage is eliminated by the confusion of insertion of an extension cord that ensures sufficient removal of flash-lamp 2. The purpose of the invention is to simplify the design. The goal is achieved by the fact that in the block. lamp flashes for small cameras, a second connector is inserted, mounted on the other side of the housing relative to the first connector, and the flash lamps are divided into two groups, each of which is connected by an opposite connector. In addition, the bases of the lamps of the lower group are directed towards the upper connector, and the bases of the lamps of the upper group are directed towards the lower connector. The body is rectangular. In this case, the flash bulbs are of a flashable type, mounted on a printed circuit board, and connected to the corresponding electrical connectors. Each group includes four lamps arranged in two pairs one above the other, and the upper group, including its electrical connections, is a reverse mirror image of the bottom. groups and vice versa, FIG. 1 shows a block of flashlights mounted on a camera, front view; figure 2 is the e, General view; Fig. 3 shows a circuit lat with which the flash lamp is connected to the unit; in FIG. 4, section A-A in FIG. 2. The device is mounted on a photo camera 1 containing a lens 2 and a viewfinder 3, a release button 4, a cartridge 5 for mounting flashlights. A flash lamp unit 6 containing a series of flash flashes is provided with a connector 7 for mounting the block into a cartridge 5 on camera 1 On the opposite side of the unit there is a second connector 8, which provides for the connection of the flash unit in either of two positions. The unit includes an upper group of lamps 9 containing lamps 10, I, 12 and 13, and a lower group 14 containing lamps 15, 16, 17 and 18. Each of the lamps has corresponding reflectors 19-26. Four lamps of the upper group 9 are electrically connected to the lower plug connector 7, and the lower group of lamps 14 is connected to the upper plug connector 8. With this orientation of the flash unit (fig 1), only the upper group of lamps can flash. To receive a flash from the bottom group of lamps, the unit must be turned over and connected to the camera using the plug connector 7. Figure 2 shows the configuration of the unit having a flat, compact, upward-extending rectangular shape. If there is a circuit that allows programming the PC (Fig. 3) , plug connectors 7 and 8 each have two electrical leads 27 and 28, 29 and 30, respectively (the plug connector features are intentionally depicted asymmetric to emphasize the identity of the appearance of the unit in either of its two orientations diy). The lamps of the lower group are oriented in the opposite way with respect to the lamps of the upper group, that is, they are turned upside down and this gives the following advantages. Cylinders of lamps with a base at the bottom better withstand and retain heat and pressure produced by the flash, as hot residues settle on their thickened part of cylinders 31 and 32. Figure 3 shows a circuit panel 33 located inside the housing 6 behind the reflectors 19-26 by means of which electrical energy is supplied to each group of lamps in order to ignite them. Plug connectors can be made at the same time with the circuit panel 33 on both sides of the unit. For simplicity, the panel 33 shows a printed circuit for providing a consistent ignition of the lamps of the upper group. For lamps of the lower group, it has a mirror image. The cartridge of the camera 5 is provided with a pair of contacts 34 and 35 which are electrically. closed with contacts 27 and 28 of the flash unit. The power supply of the lamp unit 36, which can be located inside the camera 1, supplies power to the contacts 34 and 35 of the cartridge 7, and the shape of the ignition pulse depends on the type of lamps used. When using low-voltage lamps, this can be a battery or a battery-type capacitor source of a discharge type, producing a pulse of 3–15 V or more in synchronization with the camera shutter and a power sufficient to ignite a single lamp. If a high-power flash unit 6 uses high-voltage flash lamps with a pulse voltage of 1000-2000 V, the power source 36 may include a battery-capacitor discharge circuit with a step-up voltage transformer or a compact piezoelectric element operating synchronously with the camera. The schematic panel 33. in FIG. 3 is shown in such a position that the connector 7 is directed downward and at the same time contact of the leads of the flash unit 27 to 28 is provided with contacts 34 and 35, respectively. Pin 27 is part of a conductor deposited on a panel, through which the outlets of the flash lamps 37 are connected to each of the four top flash lamps 10, 11, 12 and 13 at points 38, 39, 40 and 41 by welding, soldering or twisting-. Vani. In FIG. 3, flashlights 12 and 13 are shown by a dotted line. Lamp reflectors are provided with holes for supplying power to the lamps. The other contact 28 of the Auger circuit board is a part of the conductor, through which the lamp 12 is connected via the output pin 42 at point 43 and is connected to the switching terminals of the radiator 44, 45 and 46 located near the lamps 12, 13 and 11, respectively. Circuit panel conductor 47 is electrically connected to the flash lamp 13 pin at point 48 and is connected to the emitter off terminal 49 located near terminal 44. The circuit panel conductor 50 is electrically connected to another flash lamp 11 at point 51 and closes on the terminal 52 turn off the radiator. Similarly, the conductor 53 of the circuit board is connected to the other output pin of the flash unit 10 at point 54 and is connected to terminal 55
    turning off the radiator, located near the terminal 46.
    The switches of the emitters 56, 57 and 58 are located in such a way as to ensure contact with the clamps.1 44-49, 45-50, 46-55, shunt them,
    As a material for switches 56, 57, and 58, any material can be used whose resistance drastically decreases when illumination or the supply of heat from a corresponding neighboring lamp when it flashes. To this end, each emission switch 56, 57, and 58 is placed behind the flashlights 12, 13, and 11, respectively, close to them. Reflectors in front of the switches provide windows in the form of transparent portions or slits 59. Silver oxide dispersed in a bonding material, such as polyvinyl resin, can be used as the material for switches 56-58.
    The scheme shown in fig.Z works as follows.
    When a pulse of ignition originates from source 36, it hits the outlets of the flash lamp 12. The lamp gives a flash, and an open circuit forms between its input pins. Radiation or heat from the first lamp 12 causes the adjacent radiation switch 56 and terminals 44 and 49 to create a closed circuit, which connects the electrical terminal 28 of the circuit board to the output pin of the second lamp 13 at point 48. At the same time, the lamp ignition pulse is insufficient for igniting the second lamp 13. When the next pulse arrives, it is fed to the output lamps 13 through the switch 56, then the second lamp gives a flash, and the switch 57 acquires a low resistance, and between the output pins of the lamp 13 the circuit is broken. When the next ignition pulse arrives through the switch 57 to the output pins of the lamp 11, connected to points 40 and 51, when this lamp is ignited, its circuit is opened, and from its radiation the switch 58 operates. The next ignition pulse is supplied through the closed circuit 58 Lamp 10 connected to the circuit at points 41 and 44, causing it to fire. Since this lamp is the last in the circuit.
    it does not matter which circuit its output pins create after it has triggered - open or closed.
    After that, the flash unit turns over and a connector 8 is connected to the cartridge 5 of the camera and the other group of lamps is in the working position.
    With a different flash-programming programming scheme, the initially closed switches are used, and this circuit is opened when the adjacent lamp is ignited, using lamps that have a short circuit between the output pins and a short circuit.
    权利要求:
    Claims (5)
    [1]
    1. A flash lamp unit for small 0 barometric chambers, comprising a housing
    with flashlights electrically connected to the connectors, characterized in that, in order to simplify the design, a second connector is inserted into it, installed on the other side of the housing relative to the first connector, la flash lamps are divided into two groups, each - out of which is associated
    0 :: opposite connector.
    [2]
    2. The unit according to claim 1, characterized in that the bases of the lamps of the lower group are directed to the upper connector and the bases of the lamps of the upper
    5 groups are directed to the lower connector.
    [3]
    3. The unit according to claim 1, characterized in that the body is rectangular.
    [4]
    4. Block on PP. 1-3, characterized in that the flash lamps are incendiary-type lamps mounted on a printed circuit board and connected to the corresponding electrical connectors.
    [5]
    5. The unit according to claim 4, is different from 5 y and with the fact that each group includes four lamps located
    two pairs one above the other, with the top group, including its electrical connections, representing a reverse mirror image of the bottom group and vice versa.
    Sources of information taken into account in the examination
    1. US patent number 3665176, kl.240-13,
    5 1972.
    2. US patent 3,810,214, cl. 354/148, 1974 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU965373A3|1982-10-07|Flash tube cluster
    US3782258A|1974-01-01|Ignition arrangement for a discharge tube
    US3952320A|1976-04-20|Multiple flash lamp unit
    SU865140A3|1981-09-15|Printed circuit for multilamp blocks of lamp photoflashes
    US4136377A|1979-01-23|Foldable photoflash lamp unit
    US3912442A|1975-10-14|Connector for photoflash array
    US4074295A|1978-02-14|Compact accessory strobe for cameras with battery enclosed film pack
    US4136379A|1979-01-23|Photoflash lamp array having reflective circuit board
    US5835794A|1998-11-10|Electronic flash module
    US4048487A|1977-09-13|Last-flash indicator switch in photoflash array
    US4051359A|1977-09-27|Electric multiple flash arrangement
    US3980876A|1976-09-14|Protective terminal for multiple flash lamp unit
    US4282559A|1981-08-04|Photoflash unit having flashlamps using looped lead-in wires for retention
    US3728068A|1973-04-17|Photoflash lamp array having flash-actuated switches
    US4249230A|1981-02-03|Photoflash unit utilizing circuit board having flashlamps clamped thereto
    US4375953A|1983-03-08|Miniature photoflash unit with encapsulated flash lamps
    US4424020A|1984-01-03|Miniature photoflash unit using subminiature flash lamps
    US4158879A|1979-06-19|Flip flash having final flash signal
    US3805282A|1974-04-16|Photographic apparatus having mechanical indexing means for a multi-lamp flash unit
    US4334856A|1982-06-15|Photoflash array with selective pairing of lamps
    US3668421A|1972-06-06|Photoflash lamp array with automatic switching
    US4470801A|1984-09-11|Photoflash unit with circuit pattern for redundant switching of lamps
    US4324543A|1982-04-13|Photoflash array with selective pairing of lamps and switching of common circuit
    US4186424A|1980-01-29|Photoflash unit having lamp arrays on opposing sides
    US4245279A|1981-01-13|Photoflash unit with inverted flashlamps
    同族专利:
    公开号 | 公开日
    FR2263528B1|1978-06-23|
    JPS50125732A|1975-10-03|
    IT1033220B|1979-07-10|
    US3937946A|1976-02-10|
    GB1506062A|1978-04-05|
    FR2263528A1|1975-10-03|
    DE2504072B2|1977-11-17|
    AR209599A1|1977-05-13|
    JPS5331776B2|1978-09-05|
    DE2504072C3|1978-06-29|
    NL7502703A|1975-09-09|
    GB1506061A|1978-04-05|
    BE826388A|1975-09-08|
    DE2504072A1|1975-09-11|
    CA1034551A|1978-07-11|
    BR7501269A|1975-12-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2290309A|1941-09-13|1942-07-21|Aquilla John|Flashlight bulb|
    US3348188A|1965-06-28|1967-10-17|Eastman Kodak Co|Flash extender|
    DE1296520B|1965-07-30|1969-05-29|Agfa Gevaert Ag|Multiple flash device|
    NL154332B|1966-06-04|1977-08-15|Philips Nv|SERIES FLASH LUMINAIRES WITH FLASH LAMPS THAT CAN BE LIGHTED BACKGROUND.|
    GB1209158A|1967-12-05|1970-10-21|Howard Electronic Ind Ltd|Device for testing experimental circuits|
    NL6804718A|1968-04-04|1969-10-07|
    US3583304A|1968-09-16|1971-06-08|Polaroid Corp|Photographic camera|
    US3598985A|1968-12-16|1971-08-10|Gen Electric|Construction of disposable photoflash lamp array|
    US3614412A|1969-03-17|1971-10-19|Polaroid Corp|Photoflash lamp assembly|
    US3608451A|1969-09-18|1971-09-28|Lester S Kelem|Structure for exposing photographic film with flash illumination|
    US3837786A|1973-11-21|1974-09-24|Gte Sylvania Inc|Photoflash assembly with serially advancing lamps and ejector|US4049844A|1974-09-27|1977-09-20|General Electric Company|Method for making a circuit board and article made thereby|
    USRE30274E|1974-09-27|1980-05-13|General Electric Company|Method for making a circuit board and article made thereby|
    US3988647A|1974-09-27|1976-10-26|General Electric Company|Method for making a circuit board and article made thereby|
    US4053757A|1974-09-30|1977-10-11|General Electric Company|Photoflash lamp array having radiation switches and flash indicators|
    NL7504397A|1975-04-14|1976-10-18|Philips Nv|FLASH LAMP UNIT.|
    DE2538049A1|1975-08-27|1977-03-17|Gen Electric|ELECTRIC MULTIPLE FLASH LIGHT ARRANGEMENT|
    US4170034A|1977-12-15|1979-10-02|Gte Sylvania Incorporated|Multilamp photoflash unit with more reliable circuit arrangement|
    US4243371A|1978-03-13|1981-01-06|General Electric Company|Flash lamp array construction|
    JPS5818299Y2|1978-04-28|1983-04-13|
    US4245279A|1979-09-04|1981-01-13|Gte Products Corporation|Photoflash unit with inverted flashlamps|
    US4249230A|1979-09-04|1981-02-03|Gte Products Corporation|Photoflash unit utilizing circuit board having flashlamps clamped thereto|
    US5708866A|1996-05-02|1998-01-13|Eastman Kodak Company|Camera selects unused flash bulb farthest from taking lens to reduce red-eye effect when camera-to-subject distance within near range|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/448,671|US3937946A|1974-03-06|1974-03-06|Multiple flash lamp unit|
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