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AU6882574A - Exposure control system for photographic apparatus - Google Patents

Exposure control system for photographic apparatus

Info

Publication number
AU6882574A
AU6882574A AU68825/74A AU6882574A AU6882574A AU 6882574 A AU6882574 A AU 6882574A AU 68825/74 A AU68825/74 A AU 68825/74A AU 6882574 A AU6882574 A AU 6882574A AU 6882574 A AU6882574 A AU 6882574A
Authority
AU
Australia
Prior art keywords
control system
exposure control
photographic apparatus
photographic
exposure
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
AU68825/74A
Other versions
AU486805B2 (en
Inventor
Chin Kee Richard
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of AU486805B2 publication Critical patent/AU486805B2/en
Publication of AU6882574A publication Critical patent/AU6882574A/en
Expired 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)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Control Of Stepping Motors (AREA)
  • Stroboscope Apparatuses (AREA)
AU68825/74A 1973-05-22 1974-05-10 Exposure control system for photographic apparatus Expired AU486805B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36266473A 1973-05-22 1973-05-22
USUS362664 1973-05-22

Publications (2)

Publication Number Publication Date
AU486805B2 AU486805B2 (en) 1975-11-13
AU6882574A true AU6882574A (en) 1975-11-13

Family

ID=

Also Published As

Publication number Publication date
FR2231030A1 (en) 1974-12-20
IT1003725B (en) 1976-06-10
DD115230A5 (en) 1975-09-12
GB1474038A (en) 1977-05-18
DE2424030C2 (en) 1984-08-16
CA1019611A (en) 1977-10-25
JPS5011432A (en) 1975-02-05
FR2231030B1 (en) 1978-12-01
JPS571810B2 (en) 1982-01-13
NL7406583A (en) 1974-11-26
DE2424030A1 (en) 1974-12-12

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