FR1128983A - Improvements to photographic, cinematographic and other cameras - Google Patents
Improvements to photographic, cinematographic and other camerasInfo
- Publication number
- FR1128983A FR1128983A FR1128983DA FR1128983A FR 1128983 A FR1128983 A FR 1128983A FR 1128983D A FR1128983D A FR 1128983DA FR 1128983 A FR1128983 A FR 1128983A
- Authority
- FR
- France
- Prior art keywords
- cinematographic
- photographic
- cameras
- Prior art date
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1128983T | 1955-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1128983A true FR1128983A (en) | 1957-01-14 |
Family
ID=9636539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1128983D Expired FR1128983A (en) | 1955-04-21 | 1955-04-21 | Improvements to photographic, cinematographic and other cameras |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1128983A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3091161A (en) * | 1960-06-18 | 1963-05-28 | Asahi Optical Industry Co Ltd | Camera incorporating exposure measuring device |
US3498193A (en) * | 1966-05-28 | 1970-03-03 | Nippon Kogaku Kk | Exposure meter for measuring the illumination of image area |
-
1955
- 1955-04-21 FR FR1128983D patent/FR1128983A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3091161A (en) * | 1960-06-18 | 1963-05-28 | Asahi Optical Industry Co Ltd | Camera incorporating exposure measuring device |
US3498193A (en) * | 1966-05-28 | 1970-03-03 | Nippon Kogaku Kk | Exposure meter for measuring the illumination of image area |
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