GB2049207B - Camera exposure control circuit - Google Patents
Camera exposure control circuitInfo
- Publication number
- GB2049207B GB2049207B GB8006372A GB8006372A GB2049207B GB 2049207 B GB2049207 B GB 2049207B GB 8006372 A GB8006372 A GB 8006372A GB 8006372 A GB8006372 A GB 8006372A GB 2049207 B GB2049207 B GB 2049207B
- Authority
- GB
- United Kingdom
- Prior art keywords
- control circuit
- exposure control
- camera exposure
- camera
- circuit
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD21254979A DD143184A1 (en) | 1979-04-27 | 1979-04-27 | CIRCUIT ARRANGEMENT FOR EXPOSURE CONTROL |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2049207A GB2049207A (en) | 1980-12-17 |
GB2049207B true GB2049207B (en) | 1983-03-16 |
Family
ID=5517891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8006372A Expired GB2049207B (en) | 1979-04-27 | 1980-02-26 | Camera exposure control circuit |
Country Status (3)
Country | Link |
---|---|
DD (1) | DD143184A1 (en) |
DE (1) | DE3003661C2 (en) |
GB (1) | GB2049207B (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988748A (en) * | 1973-12-26 | 1976-10-26 | Canon Kabushiki Kaisha | Single lens reflex camera |
JPS527724A (en) * | 1975-07-08 | 1977-01-21 | Fuji Photo Optical Co Ltd | Memory lock circuit for the camera |
JPS5358233A (en) * | 1976-11-06 | 1978-05-26 | Asahi Optical Co Ltd | Digital control automatic exposure camera |
-
1979
- 1979-04-27 DD DD21254979A patent/DD143184A1/en not_active IP Right Cessation
-
1980
- 1980-02-01 DE DE19803003661 patent/DE3003661C2/en not_active Expired
- 1980-02-26 GB GB8006372A patent/GB2049207B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DD143184A1 (en) | 1980-08-06 |
DE3003661A1 (en) | 1980-11-06 |
DE3003661C2 (en) | 1983-10-27 |
GB2049207A (en) | 1980-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |