JPS57111520A - Power supply release device for camera - Google Patents

Power supply release device for camera

Info

Publication number
JPS57111520A
JPS57111520A JP17744881A JP17744881A JPS57111520A JP S57111520 A JPS57111520 A JP S57111520A JP 17744881 A JP17744881 A JP 17744881A JP 17744881 A JP17744881 A JP 17744881A JP S57111520 A JPS57111520 A JP S57111520A
Authority
JP
Japan
Prior art keywords
holding
switch
power supply
feed
block
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
JP17744881A
Other languages
Japanese (ja)
Inventor
Masami Shimizu
Hiroshi Aizawa
Masayoshi Yamamichi
Yukio Iura
Masanori Uchitoi
Tokuichi Tsunekawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP17744881A priority Critical patent/JPS57111520A/en
Publication of JPS57111520A publication Critical patent/JPS57111520A/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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/42—Interlocking between shutter operation and advance of film or change of plate or cut-film
    • G03B17/425—Interlocking between shutter operation and advance of film or change of plate or cut-film motor drive cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

PURPOSE:To prevent such an accident as the feed holding is not released in an unforeseen state, by releasing its holding by an output of a timer, in a camera controlling circuit provided with a power supply holding circuit. CONSTITUTION:A feed holding block H is provided between an exposure control and display block G, and an electric power source E. By the first stroke of release, a switch S1 is closed, feed to the block G is started, a switch S2 is closed by the second stroke, and feed to the block G is held. When the photographing sequence ends, a switch S5 is opened, and the feed holding is released. If the photographing sequence is not executed by some cause, the switch S5 is not opened, and the power supply is held. Therefore, a timing circuit T is operated by returning the release button and opening the switch S2, and said power supply holding is released after a prescribed time has passed.
JP17744881A 1981-11-05 1981-11-05 Power supply release device for camera Pending JPS57111520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17744881A JPS57111520A (en) 1981-11-05 1981-11-05 Power supply release device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17744881A JPS57111520A (en) 1981-11-05 1981-11-05 Power supply release device for camera

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50095121A Division JPS5219527A (en) 1975-08-05 1975-08-05 Energization holding disengagement system for the electromagnetic mech anism

Publications (1)

Publication Number Publication Date
JPS57111520A true JPS57111520A (en) 1982-07-12

Family

ID=16031117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17744881A Pending JPS57111520A (en) 1981-11-05 1981-11-05 Power supply release device for camera

Country Status (1)

Country Link
JP (1) JPS57111520A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860626A (en) * 1971-11-25 1973-08-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860626A (en) * 1971-11-25 1973-08-25

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