FR2109883A5 - - Google Patents
Info
- Publication number
- FR2109883A5 FR2109883A5 FR7135176A FR7135176A FR2109883A5 FR 2109883 A5 FR2109883 A5 FR 2109883A5 FR 7135176 A FR7135176 A FR 7135176A FR 7135176 A FR7135176 A FR 7135176A FR 2109883 A5 FR2109883 A5 FR 2109883A5
- 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
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7707770A | 1970-10-01 | 1970-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2109883A5 true FR2109883A5 (fr) | 1972-05-26 |
Family
ID=22135943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7135176A Expired FR2109883A5 (fr) | 1970-10-01 | 1971-09-30 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3651749A (fr) |
| DE (1) | DE2148935A1 (fr) |
| FR (1) | FR2109883A5 (fr) |
| GB (1) | GB1369046A (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4838140A (fr) * | 1971-09-14 | 1973-06-05 | ||
| US4258993A (en) * | 1976-10-05 | 1981-03-31 | Eastman Kodak Company | Light discrimination apparatus |
| US4484808A (en) * | 1982-11-01 | 1984-11-27 | Polaroid Corporation | Method of and apparatus for controlling scene radiation |
| JP3412174B2 (ja) * | 1992-05-21 | 2003-06-03 | 松下電器産業株式会社 | 自動露光制御装置 |
| US5866955A (en) * | 1996-12-27 | 1999-02-02 | Yates; Carroll H. | Manual override device for automobiles having photo activated automatic light systems |
| US7046044B2 (en) * | 2004-02-05 | 2006-05-16 | Texas Instruments Incorporated | Differential preamplifier having balanced resistor network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2058562A (en) * | 1935-12-11 | 1936-10-27 | Bucky Gustav | Light intensity self-adjusting camera |
| US2999443A (en) * | 1958-12-28 | 1961-09-12 | Yashica Co Ltd | Optical filter compensation means coupled to exposure-responsive device |
| GB1184216A (en) * | 1966-09-30 | 1970-03-11 | Fuji Photo Film Co Ltd | Filter Control Device for a Photographic Camera |
-
1970
- 1970-10-01 US US77077A patent/US3651749A/en not_active Expired - Lifetime
-
1971
- 1971-09-30 FR FR7135176A patent/FR2109883A5/fr not_active Expired
- 1971-09-30 DE DE19712148935 patent/DE2148935A1/de active Pending
- 1971-09-30 GB GB4557371A patent/GB1369046A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1369046A (en) | 1974-10-02 |
| US3651749A (en) | 1972-03-28 |
| DE2148935A1 (de) | 1972-04-06 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |