CH378152A - Einrichtung zur automatischen Belichtungseinstellung an photographischen Kameras - Google Patents
Einrichtung zur automatischen Belichtungseinstellung an photographischen KamerasInfo
- Publication number
- CH378152A CH378152A CH7961759A CH7961759A CH378152A CH 378152 A CH378152 A CH 378152A CH 7961759 A CH7961759 A CH 7961759A CH 7961759 A CH7961759 A CH 7961759A CH 378152 A CH378152 A CH 378152A
- Authority
- CH
- Switzerland
- Prior art keywords
- automatic exposure
- exposure adjustment
- photographic cameras
- photographic
- cameras
- 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
- G03B7/12—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 hand-actuated member moved from one position to another providing the energy to move the setting member, e.g. depression of shutter release button causes a stepped feeler to co-operate with the pointer of the light-sensitive device to set the diaphragm and thereafter release the shutter
-
- 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
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US768454A US3302545A (en) | 1958-10-20 | 1958-10-20 | Automatic exposure control for camera |
Publications (1)
Publication Number | Publication Date |
---|---|
CH378152A true CH378152A (de) | 1964-05-31 |
Family
ID=25082550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH7961759A CH378152A (de) | 1958-10-20 | 1959-10-19 | Einrichtung zur automatischen Belichtungseinstellung an photographischen Kameras |
Country Status (3)
Country | Link |
---|---|
US (1) | US3302545A (de) |
CH (1) | CH378152A (de) |
GB (1) | GB933425A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1914449U (de) * | 1964-12-17 | 1965-04-22 | Agfa Gevaert Ag | Fotografische kamera mit einer belichtungssteuervorrichtung. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US24356A (en) * | 1859-06-07 | Felix miller and alois wiesching | ||
US433745A (en) * | 1890-08-05 | schneider | ||
US2185847A (en) * | 1936-04-13 | 1940-01-02 | Dunningcolor Corp | Photographic apparatus and method |
CH216966A (de) * | 1939-04-28 | 1941-09-30 | Zeiss Ikon Ag | Kamera mit durch die Stromschwankungen einer Photozelle bewegter Objektivblende. |
DE842887C (de) * | 1949-10-22 | 1952-11-20 | Erich Burger | Selbsttaetiger Blendenregler fuer photographische Aufnahme- und Wiedergabegeraete |
US2838985A (en) * | 1952-08-11 | 1958-06-17 | Burger Michael | Automatic exposure regulator for photographic apparatus |
US2841064A (en) * | 1957-08-13 | 1958-07-01 | Bell & Howell Co | Exposure control for photographic cameras |
-
1958
- 1958-10-20 US US768454A patent/US3302545A/en not_active Expired - Lifetime
-
1959
- 1959-10-12 GB GB34484/59A patent/GB933425A/en not_active Expired
- 1959-10-19 CH CH7961759A patent/CH378152A/de unknown
Also Published As
Publication number | Publication date |
---|---|
US3302545A (en) | 1967-02-07 |
GB933425A (en) | 1963-08-08 |
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