FR2675277B1 - CAMERA EXPOSURE CONTROL SYSTEM. - Google Patents
CAMERA EXPOSURE CONTROL SYSTEM.Info
- Publication number
- FR2675277B1 FR2675277B1 FR9204619A FR9204619A FR2675277B1 FR 2675277 B1 FR2675277 B1 FR 2675277B1 FR 9204619 A FR9204619 A FR 9204619A FR 9204619 A FR9204619 A FR 9204619A FR 2675277 B1 FR2675277 B1 FR 2675277B1
- Authority
- FR
- France
- Prior art keywords
- control system
- exposure control
- camera exposure
- camera
- 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 - Fee Related
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
- G03B7/097—Digital circuits for control of both exposure time and aperture
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17349591 | 1991-04-15 | ||
JP3214834A JP2997343B2 (en) | 1991-05-21 | 1991-05-21 | Camera exposure control device |
JP03361198A JP3100724B2 (en) | 1991-04-15 | 1991-11-28 | Camera exposure control device |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2675277A1 FR2675277A1 (en) | 1992-10-16 |
FR2675277B1 true FR2675277B1 (en) | 1995-01-20 |
Family
ID=27323788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9204619A Expired - Fee Related FR2675277B1 (en) | 1991-04-15 | 1992-04-15 | CAMERA EXPOSURE CONTROL SYSTEM. |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU649804B2 (en) |
CA (1) | CA2066064C (en) |
DE (1) | DE4212660C2 (en) |
FR (1) | FR2675277B1 (en) |
GB (1) | GB2256060B (en) |
HK (1) | HK36495A (en) |
MY (1) | MY110099A (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185055B (en) * | 1958-08-26 | 1965-01-07 | Agfa Ag | Photographic camera with a device for controlling the aperture and exposure time setting according to a predetermined program |
US4103307A (en) * | 1973-07-16 | 1978-07-25 | Canon Kabushiki Kaisha | Exposure control device |
GB1552597A (en) * | 1975-10-09 | 1979-09-19 | Haskell R | Camera controller |
JPS5478124A (en) * | 1977-12-03 | 1979-06-22 | Nippon Chemical Ind | Automatic exposure control camera display unit |
JPS54151445A (en) * | 1978-05-19 | 1979-11-28 | Canon Inc | Camera |
JPS5624326A (en) * | 1979-08-07 | 1981-03-07 | Canon Inc | Camera of program system |
JPS60173526A (en) * | 1984-02-20 | 1985-09-06 | Asahi Optical Co Ltd | Automatic exposure camera |
US4653893A (en) * | 1984-09-03 | 1987-03-31 | Minolta Camera Co., Ltd. | Camera exposure calculating device |
US4792823A (en) * | 1985-06-27 | 1988-12-20 | Minolta Camera Kabushiki Kaisha | Camera and camera system |
JPH0785154B2 (en) * | 1986-03-14 | 1995-09-13 | オリンパス光学工業株式会社 | Camera program exposure characteristic setting method and setting apparatus |
-
1992
- 1992-04-14 CA CA 2066064 patent/CA2066064C/en not_active Expired - Fee Related
- 1992-04-14 AU AU14891/92A patent/AU649804B2/en not_active Ceased
- 1992-04-15 GB GB9208332A patent/GB2256060B/en not_active Expired - Fee Related
- 1992-04-15 MY MYPI92000648A patent/MY110099A/en unknown
- 1992-04-15 FR FR9204619A patent/FR2675277B1/en not_active Expired - Fee Related
- 1992-04-15 DE DE19924212660 patent/DE4212660C2/en not_active Expired - Lifetime
-
1995
- 1995-03-16 HK HK36495A patent/HK36495A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU649804B2 (en) | 1994-06-02 |
HK36495A (en) | 1995-03-24 |
CA2066064A1 (en) | 1992-10-16 |
GB2256060A (en) | 1992-11-25 |
GB2256060B (en) | 1994-07-13 |
FR2675277A1 (en) | 1992-10-16 |
CA2066064C (en) | 2001-07-31 |
DE4212660C2 (en) | 1997-11-06 |
DE4212660A1 (en) | 1992-10-22 |
MY110099A (en) | 1998-01-27 |
GB9208332D0 (en) | 1992-06-03 |
AU1489192A (en) | 1992-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20111230 |