JPS634125B2 - - Google Patents

Info

Publication number
JPS634125B2
JPS634125B2 JP54166692A JP16669279A JPS634125B2 JP S634125 B2 JPS634125 B2 JP S634125B2 JP 54166692 A JP54166692 A JP 54166692A JP 16669279 A JP16669279 A JP 16669279A JP S634125 B2 JPS634125 B2 JP S634125B2
Authority
JP
Japan
Prior art keywords
receiving element
light
brightness
screen
value
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
JP54166692A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5689029A (en
Inventor
Kenji Nakauchi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP16669279A priority Critical patent/JPS5689029A/ja
Priority to US06/218,566 priority patent/US4445778A/en
Publication of JPS5689029A publication Critical patent/JPS5689029A/ja
Publication of JPS634125B2 publication Critical patent/JPS634125B2/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
    • G03B7/091—Digital circuits
    • 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
    • G03B7/09979—Multi-zone light measuring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP16669279A 1979-12-21 1979-12-21 System and device for photometry Granted JPS5689029A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16669279A JPS5689029A (en) 1979-12-21 1979-12-21 System and device for photometry
US06/218,566 US4445778A (en) 1979-12-21 1980-12-22 Method of and apparatus for measuring scene brightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16669279A JPS5689029A (en) 1979-12-21 1979-12-21 System and device for photometry

Publications (2)

Publication Number Publication Date
JPS5689029A JPS5689029A (en) 1981-07-20
JPS634125B2 true JPS634125B2 (cg-RX-API-DMAC7.html) 1988-01-27

Family

ID=15835962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16669279A Granted JPS5689029A (en) 1979-12-21 1979-12-21 System and device for photometry

Country Status (1)

Country Link
JP (1) JPS5689029A (cg-RX-API-DMAC7.html)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54123030A (en) * 1978-03-17 1979-09-25 Olympus Optical Co Ltd Photometric device

Also Published As

Publication number Publication date
JPS5689029A (en) 1981-07-20

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