JPS57138624A - Photometric device for camera - Google Patents

Photometric device for camera

Info

Publication number
JPS57138624A
JPS57138624A JP56023598A JP2359881A JPS57138624A JP S57138624 A JPS57138624 A JP S57138624A JP 56023598 A JP56023598 A JP 56023598A JP 2359881 A JP2359881 A JP 2359881A JP S57138624 A JPS57138624 A JP S57138624A
Authority
JP
Japan
Prior art keywords
photometry
photodetector
light
photography
relation
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
JP56023598A
Other languages
Japanese (ja)
Other versions
JPS632096B2 (en
Inventor
Sadahiko Tsuji
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 JP56023598A priority Critical patent/JPS57138624A/en
Publication of JPS57138624A publication Critical patent/JPS57138624A/en
Publication of JPS632096B2 publication Critical patent/JPS632096B2/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
    • G03B7/099—Arrangement of photoelectric elements in or on the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE:To use the same optical system for photometry to switch the photometric sensitivity distribution with a simple constitution by changing the relation of relative displacement between a reflective member for photometry, which guides an incident light, and a photodetector to scan and measure the light in the angle of view of photography. CONSTITUTION:A part of the scatterred light of an object image light incident to a film surface 3 is detected by a photodetector 5 through a reflective member 1 for photometry, which is swung freely by a driving mechanism such as a small-sized motor 8 to change the relation of relative positions to the photodetector 5, and a condenser lens 4 and is subjected to the average photometry due to the scanning photometry in the angle of view of photography and etc. Consequently, in a simple constitution where many photodetectors are unnecessary, the photometric sensitivity distribution is switched easily and surely to the average photometry, the partial photometry, etc. with the same optical system for photometry in accordance with driving switching.
JP56023598A 1981-02-19 1981-02-19 Photometric device for camera Granted JPS57138624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023598A JPS57138624A (en) 1981-02-19 1981-02-19 Photometric device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023598A JPS57138624A (en) 1981-02-19 1981-02-19 Photometric device for camera

Publications (2)

Publication Number Publication Date
JPS57138624A true JPS57138624A (en) 1982-08-27
JPS632096B2 JPS632096B2 (en) 1988-01-16

Family

ID=12115030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023598A Granted JPS57138624A (en) 1981-02-19 1981-02-19 Photometric device for camera

Country Status (1)

Country Link
JP (1) JPS57138624A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117237U (en) * 1977-02-24 1978-09-18
JPS5623597A (en) * 1979-08-01 1981-03-05 Hitachi Ltd Multivane impeller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117237U (en) * 1977-02-24 1978-09-18
JPS5623597A (en) * 1979-08-01 1981-03-05 Hitachi Ltd Multivane impeller

Also Published As

Publication number Publication date
JPS632096B2 (en) 1988-01-16

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