JPS4959539U - - Google Patents
Info
- Publication number
- JPS4959539U JPS4959539U JP1972101939U JP10193972U JPS4959539U JP S4959539 U JPS4959539 U JP S4959539U JP 1972101939 U JP1972101939 U JP 1972101939U JP 10193972 U JP10193972 U JP 10193972U JP S4959539 U JPS4959539 U JP S4959539U
- Authority
- JP
- Japan
- 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.)
- Granted
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
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Shutters For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972101939U JPS5312608Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-31 | 1972-08-31 | |
| DE2343416A DE2343416C2 (de) | 1972-08-31 | 1973-08-29 | Belichtungssteuersystem für eine Kamera |
| US393584A US3896460A (en) | 1972-08-31 | 1973-08-31 | Electric shutter for programmed exposure control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972101939U JPS5312608Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-31 | 1972-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4959539U true JPS4959539U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-25 |
| JPS5312608Y2 JPS5312608Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-04-05 |
Family
ID=14313861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1972101939U Expired JPS5312608Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-08-31 | 1972-08-31 |
Country Status (3)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062023A (en) * | 1973-07-17 | 1977-12-06 | Minolta Camera Kabushiki Kaisha | Exposure control devices for photographic cameras |
| US4181411A (en) * | 1974-10-04 | 1980-01-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Indicator device used in camera to indicate exposure values within a finder |
| JPS5177286A (en) * | 1974-12-26 | 1976-07-05 | Asahi Optical Co Ltd | Roshutsuseigyosochi |
| JPS5184437U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-12-26 | 1976-07-07 | ||
| JPS5177229A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-12-26 | 1976-07-05 | Asahi Optical Co Ltd | |
| US4017873A (en) * | 1975-10-03 | 1977-04-12 | Polaroid Corporation | Exposure control system with braking capability |
| JPS5529814A (en) * | 1978-08-22 | 1980-03-03 | Olympus Optical Co Ltd | Programmed ee camera |
| JPS5642216A (en) * | 1979-09-14 | 1981-04-20 | Copal Co Ltd | Program exposure control unit by open photometry suited for lens interchangeable camera |
| US4324467A (en) * | 1979-12-18 | 1982-04-13 | Konishiroku Photo Industry Co., Ltd. | Programed exposure control device |
| US4779118A (en) * | 1987-12-07 | 1988-10-18 | Polaroid Corporation | Exposure control with fixed time exposure at high light levels |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1472663A1 (de) * | 1964-10-27 | 1969-04-24 | Yashica Co Ltd | Automatischer Belichtungszeitregler mit Anzeige von Aufnahmehelligkeitsgrenzen |
| US3455219A (en) * | 1966-06-13 | 1969-07-15 | Polaroid Corp | Automatic aperture selection system |
| US3641891A (en) * | 1969-06-30 | 1972-02-15 | Polaroid Corp | Exposure control system |
-
1972
- 1972-08-31 JP JP1972101939U patent/JPS5312608Y2/ja not_active Expired
-
1973
- 1973-08-29 DE DE2343416A patent/DE2343416C2/de not_active Expired
- 1973-08-31 US US393584A patent/US3896460A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3896460A (en) | 1975-07-22 |
| JPS5312608Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-04-05 |
| DE2343416A1 (de) | 1974-03-07 |
| DE2343416C2 (de) | 1983-04-28 |