JPS626214B2 - - Google Patents

Info

Publication number
JPS626214B2
JPS626214B2 JP55041639A JP4163980A JPS626214B2 JP S626214 B2 JPS626214 B2 JP S626214B2 JP 55041639 A JP55041639 A JP 55041639A JP 4163980 A JP4163980 A JP 4163980A JP S626214 B2 JPS626214 B2 JP S626214B2
Authority
JP
Japan
Prior art keywords
output
shutter
curtain
circuit
operational amplifier
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.)
Expired
Application number
JP55041639A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56138726A (en
Inventor
Masabumi Yamazaki
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP4163980A priority Critical patent/JPS56138726A/ja
Publication of JPS56138726A publication Critical patent/JPS56138726A/ja
Publication of JPS626214B2 publication Critical patent/JPS626214B2/ja
Granted 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
JP4163980A 1980-03-31 1980-03-31 Photometric apparatus Granted JPS56138726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4163980A JPS56138726A (en) 1980-03-31 1980-03-31 Photometric apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4163980A JPS56138726A (en) 1980-03-31 1980-03-31 Photometric apparatus

Publications (2)

Publication Number Publication Date
JPS56138726A JPS56138726A (en) 1981-10-29
JPS626214B2 true JPS626214B2 (enrdf_load_html_response) 1987-02-09

Family

ID=12613890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4163980A Granted JPS56138726A (en) 1980-03-31 1980-03-31 Photometric apparatus

Country Status (1)

Country Link
JP (1) JPS56138726A (enrdf_load_html_response)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651726A (en) * 1979-10-03 1981-05-09 Olympus Optical Co Ltd Photometric system

Also Published As

Publication number Publication date
JPS56138726A (en) 1981-10-29

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