GB1310027A - Exposure control system - Google Patents

Exposure control system

Info

Publication number
GB1310027A
GB1310027A GB3140870A GB3140870A GB1310027A GB 1310027 A GB1310027 A GB 1310027A GB 3140870 A GB3140870 A GB 3140870A GB 3140870 A GB3140870 A GB 3140870A GB 1310027 A GB1310027 A GB 1310027A
Authority
GB
United Kingdom
Prior art keywords
exposure control
electromagnets
exposure
blades
photographic
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
GB3140870A
Other languages
English (en)
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
Publication of GB1310027A publication Critical patent/GB1310027A/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
    • G03B7/10—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 a servo-motor providing energy to move the setting member
    • 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
    • G03B7/087—Analogue circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
GB3140870A 1969-06-30 1970-06-29 Exposure control system Expired GB1310027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83768269A 1969-06-30 1969-06-30

Publications (1)

Publication Number Publication Date
GB1310027A true GB1310027A (en) 1973-03-14

Family

ID=25275122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3140870A Expired GB1310027A (en) 1969-06-30 1970-06-29 Exposure control system

Country Status (6)

Country Link
US (1) US3595152A (enrdf_load_stackoverflow)
JP (1) JPS5418138B1 (enrdf_load_stackoverflow)
CA (1) CA921311A (enrdf_load_stackoverflow)
DE (1) DE2032039C2 (enrdf_load_stackoverflow)
FR (1) FR2051439A5 (enrdf_load_stackoverflow)
GB (1) GB1310027A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA998865A (en) * 1972-04-24 1976-10-26 Polaroid Corporation Photographic control system for flash and ambient light modes
JPS4997616A (enrdf_load_stackoverflow) * 1973-01-20 1974-09-14
JPS49110337A (enrdf_load_stackoverflow) * 1973-02-20 1974-10-21
JPS5271525U (enrdf_load_stackoverflow) * 1975-11-25 1977-05-28
US4335945A (en) * 1981-01-02 1982-06-22 Polaroid Corporation Camera with structure for adjusting lens disc velocity and calibration method
JPH1184464A (ja) * 1997-09-09 1999-03-26 Olympus Optical Co Ltd 電子的撮像装置
JP3986134B2 (ja) * 1997-09-09 2007-10-03 オリンパス株式会社 電子的撮像装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118601B (de) * 1956-09-26 1961-11-30 Gauthier Gmbh A Photographische Kamera oder photographischer Verschluss mit selbsttaetiger Belichtungseinstellung
US3292516A (en) * 1963-05-17 1966-12-20 Copal Co Ltd Photographic camera with automatic exposure control
GB1088915A (en) * 1964-05-15 1967-10-25 Agfa Ag Photographic camera with an exposure regulating device
DE1231546B (de) * 1964-08-27 1966-12-29 Agfa Gevaert Ag Fotografische Kamera mit einer Belichtungssteuereinrichtung
US3416421A (en) * 1965-05-06 1968-12-17 Agfa Gevaert Ag Exposure control for photographic cameras
DE1472637A1 (de) * 1965-05-28 1969-07-10 Gossen & Co Gmbh P Elektronisch gesteuerter Kameraverschluss
US3464332A (en) * 1966-05-12 1969-09-02 Polaroid Corp Automatic exposure control system

Also Published As

Publication number Publication date
DE2032039A1 (de) 1971-01-14
FR2051439A5 (enrdf_load_stackoverflow) 1971-04-02
CA921311A (en) 1973-02-20
JPS5418138B1 (enrdf_load_stackoverflow) 1979-07-05
US3595152A (en) 1971-07-27
DE2032039C2 (de) 1983-07-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee