JPS4991639A - - Google Patents

Info

Publication number
JPS4991639A
JPS4991639A JP48000124A JP12473A JPS4991639A JP S4991639 A JPS4991639 A JP S4991639A JP 48000124 A JP48000124 A JP 48000124A JP 12473 A JP12473 A JP 12473A JP S4991639 A JPS4991639 A JP S4991639A
Authority
JP
Japan
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
JP48000124A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP48000124A priority Critical patent/JPS4991639A/ja
Priority to DE19732364451 priority patent/DE2364451A1/en
Publication of JPS4991639A publication Critical patent/JPS4991639A/ja
Priority to US05/591,939 priority patent/US4021822A/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
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
JP48000124A 1972-12-30 1972-12-30 Pending JPS4991639A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP48000124A JPS4991639A (en) 1972-12-30 1972-12-30
DE19732364451 DE2364451A1 (en) 1972-12-30 1973-12-24 PHOTOGRAPHIC CAMERA WITH AN ELECTRICALLY CONTROLLED SHUTTER SYSTEM
US05/591,939 US4021822A (en) 1972-12-30 1975-06-30 Electrically controlled shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48000124A JPS4991639A (en) 1972-12-30 1972-12-30

Publications (1)

Publication Number Publication Date
JPS4991639A true JPS4991639A (en) 1974-09-02

Family

ID=11465275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48000124A Pending JPS4991639A (en) 1972-12-30 1972-12-30

Country Status (2)

Country Link
JP (1) JPS4991639A (en)
DE (1) DE2364451A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764041A (en) * 1980-10-03 1982-04-17 Olympus Optical Co Automatic exposure device for endoscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4218587Y1 (en) * 1964-03-27 1967-10-27
DE2062606A1 (en) * 1966-11-07 1971-07-08 Canon K.K., Tokio Single lens reflex camera

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4218587Y1 (en) * 1964-03-27 1967-10-27
DE2062606A1 (en) * 1966-11-07 1971-07-08 Canon K.K., Tokio Single lens reflex camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764041A (en) * 1980-10-03 1982-04-17 Olympus Optical Co Automatic exposure device for endoscope

Also Published As

Publication number Publication date
DE2364451A1 (en) 1974-07-04

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Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 19810526