HK42878A - Cameras having electronic exposure control - Google Patents
Cameras having electronic exposure controlInfo
- Publication number
- HK42878A HK42878A HK428/78A HK42878A HK42878A HK 42878 A HK42878 A HK 42878A HK 428/78 A HK428/78 A HK 428/78A HK 42878 A HK42878 A HK 42878A HK 42878 A HK42878 A HK 42878A
- Authority
- HK
- Hong Kong
- Prior art keywords
- cameras
- exposure control
- electronic exposure
- electronic
- control
- Prior art date
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
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
- Stroboscope Apparatuses (AREA)
- Camera Data Copying Or Recording (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732353924 DE2353924C3 (de) | 1973-10-27 | Fotografische Kamera |
Publications (1)
Publication Number | Publication Date |
---|---|
HK42878A true HK42878A (en) | 1978-08-11 |
Family
ID=5896606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK428/78A HK42878A (en) | 1973-10-27 | 1978-08-03 | Cameras having electronic exposure control |
Country Status (5)
Country | Link |
---|---|
US (1) | US3958256A (de) |
JP (1) | JPS5128029B2 (de) |
FR (1) | FR2249357B1 (de) |
GB (1) | GB1491497A (de) |
HK (1) | HK42878A (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT348335B (de) * | 1974-11-09 | 1979-02-12 | Agfa Gevaert Ag | Regelvorrichtung fuer fotografische geraete |
US4192588A (en) * | 1974-11-09 | 1980-03-11 | Agfa-Gevaert, A.G. | Control system for controlling the diaphragm in a photographic camera |
DE2714149A1 (de) * | 1977-03-30 | 1978-10-12 | Agfa Gevaert Ag | Fotografische kamera mit einer belichtungsanzeigevorrichtung |
US4375912A (en) * | 1978-01-25 | 1983-03-08 | Ricoh Company, Ltd. | Electric circuits for use in camera |
DE2818606A1 (de) * | 1978-04-27 | 1979-11-08 | Agfa Gevaert Ag | Belichtungssteuervorrichtung fuer fotografische kameras |
US4482238A (en) * | 1980-12-27 | 1984-11-13 | Canon Kabushiki Kaisha | Brightness warning device for camera |
US20040028164A1 (en) * | 2002-08-07 | 2004-02-12 | Hongtao Jiang | System and method for data transition control in a multirate communication system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455219A (en) * | 1966-06-13 | 1969-07-15 | Polaroid Corp | Automatic aperture selection system |
US3782254A (en) * | 1971-09-03 | 1974-01-01 | Olympus Optical Co | Apparatus for indicating exposure conditions of cameras equipped with electric shutter mechanisms |
JPS4889724A (de) * | 1972-02-25 | 1973-11-22 | ||
DE2230865C3 (de) * | 1972-06-23 | 1978-10-05 | Agfa-Gevaert Ag, 5090 Leverkusen | Fotografische Kamera mit einer elektronischen Belichtungssteuervorrichtung |
DE2242925A1 (de) * | 1972-08-31 | 1974-03-14 | Agfa Gevaert Ag | Fotografische oder kinematografische kamera |
-
1974
- 1974-10-07 FR FR7433643A patent/FR2249357B1/fr not_active Expired
- 1974-10-24 US US05/517,842 patent/US3958256A/en not_active Expired - Lifetime
- 1974-10-25 JP JP49123290A patent/JPS5128029B2/ja not_active Expired
- 1974-10-28 GB GB46524/74A patent/GB1491497A/en not_active Expired
-
1978
- 1978-08-03 HK HK428/78A patent/HK42878A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1491497A (en) | 1977-11-09 |
US3958256A (en) | 1976-05-18 |
JPS5128029B2 (de) | 1976-08-16 |
DE2353924A1 (de) | 1975-04-30 |
FR2249357A1 (de) | 1975-05-23 |
DE2353924B2 (de) | 1976-07-08 |
FR2249357B1 (de) | 1981-05-22 |
JPS5075431A (de) | 1975-06-20 |
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