FR2188156B1 - - Google Patents
Info
- Publication number
- FR2188156B1 FR2188156B1 FR7320990A FR7320990A FR2188156B1 FR 2188156 B1 FR2188156 B1 FR 2188156B1 FR 7320990 A FR7320990 A FR 7320990A FR 7320990 A FR7320990 A FR 7320990A FR 2188156 B1 FR2188156 B1 FR 2188156B1
- Authority
- FR
- France
- 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
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
-
- 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)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972068351U JPS5120773Y2 (fr) | 1972-06-09 | 1972-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2188156A1 FR2188156A1 (fr) | 1974-01-18 |
| FR2188156B1 true FR2188156B1 (fr) | 1976-04-09 |
Family
ID=13371307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7320990A Expired FR2188156B1 (fr) | 1972-06-09 | 1973-06-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3879740A (fr) |
| JP (1) | JPS5120773Y2 (fr) |
| FR (1) | FR2188156B1 (fr) |
| GB (1) | GB1386188A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56251Y2 (fr) * | 1974-07-27 | 1981-01-07 | ||
| JPS5853294B2 (ja) * | 1974-08-21 | 1983-11-28 | ミノルタ株式会社 | ソクコウカイロ |
| US4442381A (en) * | 1982-08-30 | 1984-04-10 | Fuji Photo Optical Co., Ltd. | Auto strobe control circuit |
| CN110672202B (zh) * | 2019-09-18 | 2022-02-15 | 上海奕瑞光电子科技股份有限公司 | 平板探测器像素电路、平板探测***及平板探测方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3693518A (en) * | 1968-01-02 | 1972-09-26 | Nippon Kogaku Kk | Memory circuit of an electric shutter |
| US3690230A (en) * | 1969-12-25 | 1972-09-12 | Asahi Optical Co Ltd | Electronic circuits for automatic camera controls |
| JPS4837605B1 (fr) * | 1970-04-14 | 1973-11-12 | ||
| GB1339622A (en) * | 1970-06-16 | 1973-12-05 | Asahi Optical Co Ltd | Electric shutter control circuit for a single-lens reflex camera |
-
1972
- 1972-06-09 JP JP1972068351U patent/JPS5120773Y2/ja not_active Expired
-
1973
- 1973-06-04 US US366485A patent/US3879740A/en not_active Expired - Lifetime
- 1973-06-08 GB GB2747073A patent/GB1386188A/en not_active Expired
- 1973-06-08 FR FR7320990A patent/FR2188156B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5120773Y2 (fr) | 1976-05-29 |
| GB1386188A (en) | 1975-03-05 |
| FR2188156A1 (fr) | 1974-01-18 |
| US3879740A (en) | 1975-04-22 |
| JPS4928030U (fr) | 1974-03-11 |