JPH038527B2 - - Google Patents

Info

Publication number
JPH038527B2
JPH038527B2 JP56085364A JP8536481A JPH038527B2 JP H038527 B2 JPH038527 B2 JP H038527B2 JP 56085364 A JP56085364 A JP 56085364A JP 8536481 A JP8536481 A JP 8536481A JP H038527 B2 JPH038527 B2 JP H038527B2
Authority
JP
Japan
Prior art keywords
aperture
voltage
counter
circuit
aperture 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 - Lifetime
Application number
JP56085364A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57200018A (en
Inventor
Tadashi Esha
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56085364A priority Critical patent/JPS57200018A/ja
Publication of JPS57200018A publication Critical patent/JPS57200018A/ja
Publication of JPH038527B2 publication Critical patent/JPH038527B2/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
    • G03B7/095—Digital circuits for control of aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
JP56085364A 1981-06-03 1981-06-03 Aperture adjusting device of camera Granted JPS57200018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56085364A JPS57200018A (en) 1981-06-03 1981-06-03 Aperture adjusting device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56085364A JPS57200018A (en) 1981-06-03 1981-06-03 Aperture adjusting device of camera

Publications (2)

Publication Number Publication Date
JPS57200018A JPS57200018A (en) 1982-12-08
JPH038527B2 true JPH038527B2 (enrdf_load_stackoverflow) 1991-02-06

Family

ID=13856651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56085364A Granted JPS57200018A (en) 1981-06-03 1981-06-03 Aperture adjusting device of camera

Country Status (1)

Country Link
JP (1) JPS57200018A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0409161B1 (en) * 1989-07-18 2000-10-11 Fuji Photo Film Co., Ltd. Method and apparatus for controlling exposure changes of a video camera

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611442A (en) * 1979-07-06 1981-02-04 Kyocera Corp Detecting circuit for stoppage of stopping-down in exposure control unit

Also Published As

Publication number Publication date
JPS57200018A (en) 1982-12-08

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