JPS5237428A - Automatic exposure control device - Google Patents

Automatic exposure control device

Info

Publication number
JPS5237428A
JPS5237428A JP50114141A JP11414175A JPS5237428A JP S5237428 A JPS5237428 A JP S5237428A JP 50114141 A JP50114141 A JP 50114141A JP 11414175 A JP11414175 A JP 11414175A JP S5237428 A JPS5237428 A JP S5237428A
Authority
JP
Japan
Prior art keywords
control device
exposure control
automatic exposure
shutter blade
exposure
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.)
Granted
Application number
JP50114141A
Other languages
Japanese (ja)
Other versions
JPH0330130B2 (en
Inventor
Hiroshi Iwata
Tetsuo Yamaoka
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.)
West Electric Co Ltd
Original Assignee
West Electric Co Ltd
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 West Electric Co Ltd filed Critical West Electric Co Ltd
Priority to JP50114141A priority Critical patent/JPS5237428A/en
Publication of JPS5237428A publication Critical patent/JPS5237428A/en
Publication of JPH0330130B2 publication Critical patent/JPH0330130B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To assure the closure maintenance of a shutter blade at the time of deenergization by preventing an erroneous exposure in an automatic control device wherein an exposure due to the open-and-close of the shutter blade is automatically controlled by controlling an electromotive drive source which opens-and-closes the shutter blade in response to the brightness of an object.
COPYRIGHT: (C)1977,JPO&Japio
JP50114141A 1975-09-19 1975-09-19 Automatic exposure control device Granted JPS5237428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50114141A JPS5237428A (en) 1975-09-19 1975-09-19 Automatic exposure control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50114141A JPS5237428A (en) 1975-09-19 1975-09-19 Automatic exposure control device

Publications (2)

Publication Number Publication Date
JPS5237428A true JPS5237428A (en) 1977-03-23
JPH0330130B2 JPH0330130B2 (en) 1991-04-26

Family

ID=14630157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50114141A Granted JPS5237428A (en) 1975-09-19 1975-09-19 Automatic exposure control device

Country Status (1)

Country Link
JP (1) JPS5237428A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268153A (en) * 1979-06-22 1981-05-19 Canon Kabushiki Kaisha Electromagnetically driven shutter
US4319822A (en) * 1979-10-13 1982-03-16 Canon Kabushiki Kaisha Electromagnetically operated shutter
JPS58216230A (en) * 1982-06-11 1983-12-15 Fuji Photo Film Co Ltd Electromagnetically driven shutter
JPS60140934U (en) * 1984-02-27 1985-09-18 株式会社精工舎 Step motor driven sector opening/closing device
JPS60225122A (en) * 1984-04-23 1985-11-09 Seiko Koki Kk Program shutter
JPS619632A (en) * 1984-06-25 1986-01-17 Seiko Koki Kk Electromagnetically driven shutter in camera
JPS6345645U (en) * 1986-09-13 1988-03-28
JPH0380234A (en) * 1990-02-01 1991-04-05 Seikosha Co Ltd Method for controlling shutter for step motor type camera
JP2002107792A (en) * 2000-10-03 2002-04-10 Canon Inc Light quantity adjusting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017635A (en) * 1973-05-22 1975-02-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017635A (en) * 1973-05-22 1975-02-25

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268153A (en) * 1979-06-22 1981-05-19 Canon Kabushiki Kaisha Electromagnetically driven shutter
US4319822A (en) * 1979-10-13 1982-03-16 Canon Kabushiki Kaisha Electromagnetically operated shutter
JPS58216230A (en) * 1982-06-11 1983-12-15 Fuji Photo Film Co Ltd Electromagnetically driven shutter
JPS60140934U (en) * 1984-02-27 1985-09-18 株式会社精工舎 Step motor driven sector opening/closing device
JPH0447697Y2 (en) * 1984-02-27 1992-11-11
JPS60225122A (en) * 1984-04-23 1985-11-09 Seiko Koki Kk Program shutter
JPS619632A (en) * 1984-06-25 1986-01-17 Seiko Koki Kk Electromagnetically driven shutter in camera
JPS6345645U (en) * 1986-09-13 1988-03-28
JPH047799Y2 (en) * 1986-09-13 1992-02-28
JPH0380234A (en) * 1990-02-01 1991-04-05 Seikosha Co Ltd Method for controlling shutter for step motor type camera
JPH0474693B2 (en) * 1990-02-01 1992-11-26
JP2002107792A (en) * 2000-10-03 2002-04-10 Canon Inc Light quantity adjusting device

Also Published As

Publication number Publication date
JPH0330130B2 (en) 1991-04-26

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