FR2448164B1 - - Google Patents
Info
- Publication number
- FR2448164B1 FR2448164B1 FR8002208A FR8002208A FR2448164B1 FR 2448164 B1 FR2448164 B1 FR 2448164B1 FR 8002208 A FR8002208 A FR 8002208A FR 8002208 A FR8002208 A FR 8002208A FR 2448164 B1 FR2448164 B1 FR 2448164B1
- 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
- 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
-
- 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
- G03B7/093—Digital circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1056779A JPS55103542A (en) | 1979-02-01 | 1979-02-01 | Exposure time display circuit of camera |
| JP1056879A JPS55103531A (en) | 1979-02-01 | 1979-02-01 | Exposure time control circuit of camera |
| JP1056679A JPS55103530A (en) | 1979-02-01 | 1979-02-01 | Exposure time control circuit of camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2448164A1 FR2448164A1 (fr) | 1980-08-29 |
| FR2448164B1 true FR2448164B1 (US07714131-20100511-C00001.png) | 1984-01-13 |
Family
ID=27279012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8002208A Granted FR2448164A1 (fr) | 1979-02-01 | 1980-02-01 | Circuit de reglage de temps de pose pour appareil photographique |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4306785A (US07714131-20100511-C00001.png) |
| DE (1) | DE3003745C2 (US07714131-20100511-C00001.png) |
| FR (1) | FR2448164A1 (US07714131-20100511-C00001.png) |
| GB (2) | GB2059612B (US07714131-20100511-C00001.png) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5670533A (en) * | 1979-11-13 | 1981-06-12 | Asahi Optical Co Ltd | Control circuit for exposure time of camera |
| JPS5730822A (en) * | 1980-07-31 | 1982-02-19 | Olympus Optical Co Ltd | Average photometry method at plural points of automatic exposure camera |
| JPS57195226A (en) * | 1981-05-27 | 1982-11-30 | Olympus Optical Co Ltd | Automatic exposure controller of camera |
| JPH0823648B2 (ja) * | 1983-08-11 | 1996-03-06 | 株式会社ニコン | カメラの優先モード設定装置 |
| US5184159A (en) * | 1989-07-25 | 1993-02-02 | Asahi Kogaku Kogyo Kabushiki Kaisha | Light source apparatus for endoscope |
| US5272497A (en) * | 1989-07-25 | 1993-12-21 | Asahi Kogaku Kogyo Kabushiki Kaisha | Light source apparatus for endoscope |
| JP2868270B2 (ja) * | 1990-02-14 | 1999-03-10 | 旭光学工業株式会社 | カメラの露出制御装置 |
| KR100210005B1 (ko) * | 1991-04-15 | 1999-07-15 | 마츠모토 도루 | 카메라의 노출제어장치 |
| CA2066022C (en) * | 1991-04-15 | 2000-08-15 | Osamu Sato | Exposure control apparatus of camera |
| AU649805B2 (en) * | 1991-04-15 | 1994-06-02 | Asahi Kogaku Kogyo Kabushiki Kaisha | Exposure control apparatus of camera |
| JP5125010B2 (ja) * | 2006-07-20 | 2013-01-23 | ソニー株式会社 | 固体撮像装置、及び制御システム |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640811B2 (US07714131-20100511-C00001.png) * | 1972-12-29 | 1981-09-24 | ||
| JPS5631572B2 (US07714131-20100511-C00001.png) * | 1973-08-24 | 1981-07-22 | ||
| JPS576565B2 (US07714131-20100511-C00001.png) * | 1974-02-18 | 1982-02-05 | ||
| JPS577420B2 (US07714131-20100511-C00001.png) * | 1974-02-18 | 1982-02-10 | ||
| JPS6018927B2 (ja) * | 1975-11-06 | 1985-05-13 | 旭光学工業株式会社 | カメラのデイジタル表示回路 |
| JPS52119228A (en) * | 1976-03-30 | 1977-10-06 | Canon Inc | Means for setting photograph information |
| JPS5358233A (en) * | 1976-11-06 | 1978-05-26 | Asahi Optical Co Ltd | Digital control automatic exposure camera |
| JPS5379533A (en) * | 1976-12-24 | 1978-07-14 | Nippon Chemical Ind | Exposure control device for camera |
-
1980
- 1980-01-17 US US06/113,003 patent/US4306785A/en not_active Expired - Lifetime
- 1980-01-24 GB GB8032779A patent/GB2059612B/en not_active Expired
- 1980-01-24 GB GB8002465A patent/GB2045957B/en not_active Expired
- 1980-02-01 FR FR8002208A patent/FR2448164A1/fr active Granted
- 1980-02-01 DE DE3003745A patent/DE3003745C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2059612A (en) | 1981-04-23 |
| GB2045957B (en) | 1983-03-30 |
| DE3003745C2 (de) | 1984-05-03 |
| US4306785A (en) | 1981-12-22 |
| GB2045957A (en) | 1980-11-05 |
| DE3003745A1 (de) | 1980-08-07 |
| GB2059612B (en) | 1983-05-25 |
| FR2448164A1 (fr) | 1980-08-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DL | Decision of the director general to leave to make available licences of right | ||
| ST | Notification of lapse |