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    • 5. 发明授权
    • Power supply device for camera
    • 相机电源装置
    • US4387977A
    • 1983-06-14
    • US85230
    • 1979-10-16
    • Masanori UchidoiHiroshi AizawaKazunobu UrushiharaNobuyuki SuzukiMasami Shimizu
    • Masanori UchidoiHiroshi AizawaKazunobu UrushiharaNobuyuki SuzukiMasami Shimizu
    • G03B7/26G03B9/08
    • G03B7/26
    • The disclosed camera power control devices operate with a camera in which a first switch responds to initial movement of a shutter release member, and a second switch responds to further movement of the release member. In the power control device, turning the first switch on energizes the light metering and display circuits, and turning on the second switch supplies an exposure control circuit such as a shutter control circuit with electrical energy. The power control device is provided with an electrical timer circuit, and a selection arrangement operates to selectively actuate the timer circuit when the release member is returned to its rest position and the first switch changes is state from ON to OFF. During a period of time determined by the timer circuit, power continues to be supplied to operate the light metering and display circuits.
    • 所公开的照相机功率控制装置与其中第一开关响应快门释放构件的初始移动的照相机一起操作,并且第二开关响应于释放构件的进一步移动。 在功率控制装置中,转动第一开关使得计量和显示电路通电,并且打开第二开关为电能提供诸如快门控制电路的曝光控制电路。 功率控制装置设置有电定时器电路,并且当释放构件返回到其静止位置并且第一开关从接通变为断开状态时,选择装置用于选择性地启动定时器电路。 在由定时器电路确定的时间段期间,继续供电以操作测光和显示电路。
    • 7. 发明授权
    • Shutter time control circuit
    • 快门时间控制电路
    • US4395098A
    • 1983-07-26
    • US309385
    • 1981-10-07
    • Masanori UchidoiKazunobu Urushihara
    • Masanori UchidoiKazunobu Urushihara
    • G03B7/093G03B7/083G03B9/62G03B7/08
    • G03B7/083
    • The present invention relates to a shutter time control circuit for a camera having a focal plane shutter and a timer circuit for counting the shutter time in a digital way. In accordance with the present invention a preset means for presetting the amount of the overlapping of the shutter curtain and/or the response delay of the magnet on the timer circuit as digital values is provided in such a manner that the clock time is compensated in accordance with the preset digital value so as to compensate the exposure error due to the overlapping amount of the shutter curtains and so on, which makes it possible to offer a digital exposure compensation device suited for the camera having a shutter control circuit for digitally controlling the shutter time.
    • 本发明涉及一种用于具有焦平面快门和定时器电路的照相机的快门时间控制电路,用于以数字方式对快门时间进行计数。 根据本发明,一种预设装置,用于将定时器电路上的快门帘幕的重叠量和/或磁体的响应延迟量预设为数字值,使得时钟时间按照 具有预设的数字值,以补偿由于快门帘等的重叠量引起的曝光误差,这使得可以提供适合于具有用于数字控制快门的快门控制电路的相机的数字曝光补偿装置 时间。
    • 8. 发明授权
    • Exposure time control device for camera
    • 相机曝光时间控制装置
    • US4349263A
    • 1982-09-14
    • US144981
    • 1980-04-30
    • Masanori UchidoiKazunobu Urushihara
    • Masanori UchidoiKazunobu Urushihara
    • G03B7/093G03B9/62
    • G03B7/093G03B9/62
    • In the exposure time control device disclosed, a first timer sets a first time interval equal to a desired exposure time but establishes an exposure time in the shutter different from the desired exposure time. A second timing arrangement forms a compensation time interval. Suitable means maintain the opening of the shutter for a total time equal to the given time interval and the compensation time interval so that the shutter is open for the desired exposure time. A control shortens the given time interval formed by the first timing arrangement by a predetermined time interval so that the given time interval formed is shorter than the desired exposure time. This permits compensation not only for errors which tend to shorten the exposure time, but also those which tend to lengthen the exposure time.
    • 在所公开的曝光时间控制装置中,第一定时器设置等于期望曝光时间的第一时间间隔,但是在快门中建立与期望的曝光时间不同的曝光时间。 第二定时装置形成补偿时间间隔。 合适的装置保持快门的打开总时间等于给定的时间间隔和补偿时间间隔,使得快门打开所需的曝光时间。 控制将由第一定时装置形成的给定时间间隔缩短预定时间间隔,使得形成的给定时间间隔短于期望的曝光时间。 这样可以补偿不仅会缩短曝光时间的错误,而且可以延长曝光时间延长的错误。
    • 9. 发明授权
    • Exposure time control device
    • 曝光时间控制装置
    • US4464032A
    • 1984-08-07
    • US410692
    • 1982-08-23
    • Masayoshi KiuchiMasanori UchidoiKazunobu Urushihara
    • Masayoshi KiuchiMasanori UchidoiKazunobu Urushihara
    • G03B9/04G03B9/62G03B9/64
    • G03B9/04G03B9/62
    • An exposure time control device includes electromagnets for causing corresponding leading and trailing shutter curtains in a camera to travel. A second timer circuit, which is adjustable, is arranged to count a correction time in response to operation of a first timer circuit which counts an exposure time for the camera. After the lapse of the correction count time of the second timer circuit, the electromagnet for the leading shutter curtain is actuated, and then the electromagnet for the trailing shutter curtain is actuated after the lapse of the exposure count time of the first timer circuit. Exposure time errors which would otherwise result from overlapping of the shutter curtains and response delay of the trailing shutter curtain electromagnet, thus can be corrected by adjustment of the second timer circuit.
    • 曝光时间控制装置包括用于使照相机中相应的前和后帘快门行进的电磁铁。 可调节的第二定时器电路被布置成响应于计数相机的曝光时间的第一定时器电路的操作来计数校正时间。 在第二定时器电路的校正计数时间经过之后,用于引导快门帘幕的电磁体被致动,然后在经过第一定时器电路的曝光计数时间之后用于后帘快门帘幕的电磁体被致动。 因此,可以通过调节第二定时器电路来校正否则由快门帘幕的重叠和后帘帘式电磁铁的响应延迟引起的曝光时间误差。