JPS57112726A - Electronic shutter for camera - Google Patents

Electronic shutter for camera

Info

Publication number
JPS57112726A
JPS57112726A JP18819080A JP18819080A JPS57112726A JP S57112726 A JPS57112726 A JP S57112726A JP 18819080 A JP18819080 A JP 18819080A JP 18819080 A JP18819080 A JP 18819080A JP S57112726 A JPS57112726 A JP S57112726A
Authority
JP
Japan
Prior art keywords
turned
electromagnet
driving member
exposure
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18819080A
Other languages
Japanese (ja)
Inventor
Tadashi Nakagawa
Kazuo Akimoto
Takashi Kogo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Koki KK
Original Assignee
Seiko Koki KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Koki KK filed Critical Seiko Koki KK
Priority to JP18819080A priority Critical patent/JPS57112726A/en
Publication of JPS57112726A publication Critical patent/JPS57112726A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • G03B9/62—Means for varying duration of "open" period of shutter by varying interval of time between end of opening movement and beginning of closing movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutter-Related Mechanisms (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To operate a shutter with a small number of components, by operating a driving member by a release operation and by providing the driving member on an iron piece lever which is controlled by an electromagnet connected to an exposure control circuit. CONSTITUTION:When a release plate 4 is depressed, a switch S1 is closed, and an electromagnet 10 is excited by an exposure control circuit 11 to attract and hold a piece 12 to be adsorbed. When the release plate 4 is depressed furthermore, detention due to a detaining pawl 7 is released by the terminal to operate a driving member 6 in the right direction. Then, a switch S2 is opened, and a shutter blade 2 is turned to start exposure; and after the elapse of a desired time, the electromagnet 10 is degaussed, and the piece 12 is separated from the electromagnet 10, and thus, an iron piece lever 5 is turned to the right by a spring 5i energized preliminarily, and the driving member 6 is not only turned to the right around a shaft 6a but also operated in the right direction by a spring 6h, and detention of a projection 6d is released to turn a switching member 3 to the left, and the shutter blade 2 is turned to complete exposure.
JP18819080A 1980-12-29 1980-12-29 Electronic shutter for camera Pending JPS57112726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18819080A JPS57112726A (en) 1980-12-29 1980-12-29 Electronic shutter for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18819080A JPS57112726A (en) 1980-12-29 1980-12-29 Electronic shutter for camera

Publications (1)

Publication Number Publication Date
JPS57112726A true JPS57112726A (en) 1982-07-13

Family

ID=16219335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18819080A Pending JPS57112726A (en) 1980-12-29 1980-12-29 Electronic shutter for camera

Country Status (1)

Country Link
JP (1) JPS57112726A (en)

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