JPS49107534A - - Google Patents
Info
- Publication number
- JPS49107534A JPS49107534A JP48018629A JP1862973A JPS49107534A JP S49107534 A JPS49107534 A JP S49107534A JP 48018629 A JP48018629 A JP 48018629A JP 1862973 A JP1862973 A JP 1862973A JP S49107534 A JPS49107534 A JP S49107534A
- 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.)
- Pending
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)
- Diaphragms For Cameras (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48018629A JPS49107534A (ja) | 1973-02-14 | 1973-02-14 | |
| DE19742406825 DE2406825A1 (de) | 1973-02-14 | 1974-02-13 | Automatische belichtungssteuerung fuer eine kamera |
| FR7405034A FR2217711B1 (ja) | 1973-02-14 | 1974-02-14 | |
| US00442554A US3846807A (en) | 1973-02-14 | 1974-02-14 | Automatic exposure control device for photographic cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48018629A JPS49107534A (ja) | 1973-02-14 | 1973-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS49107534A true JPS49107534A (ja) | 1974-10-12 |
Family
ID=11976897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48018629A Pending JPS49107534A (ja) | 1973-02-14 | 1973-02-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3846807A (ja) |
| JP (1) | JPS49107534A (ja) |
| DE (1) | DE2406825A1 (ja) |
| FR (1) | FR2217711B1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1000547A (en) * | 1972-10-11 | 1976-11-30 | Israel Nesson | Photographic exposure control mechanism |
| JPS62486B2 (ja) * | 1975-02-06 | 1987-01-08 | Copal Co Ltd | |
| JPS51151539A (en) * | 1975-06-20 | 1976-12-27 | Canon Inc | Diaphragm device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2995996A (en) * | 1956-12-24 | 1961-08-15 | Gossen & Co Gmbh P | Automatic exposure control for photographic cameras |
| US3299789A (en) * | 1964-06-05 | 1967-01-24 | Eastman Kodak Co | Automatic exposure control system |
| US3589258A (en) * | 1968-11-29 | 1971-06-29 | Bell & Howell Co | Light control means in a camera |
| US3651748A (en) * | 1968-12-13 | 1972-03-28 | Nihon Eigakikai Kk | Camera iris blade |
| US3584558A (en) * | 1969-01-31 | 1971-06-15 | Eastman Kodak Co | Device for extending exposure range of a camera |
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1973
- 1973-02-14 JP JP48018629A patent/JPS49107534A/ja active Pending
-
1974
- 1974-02-13 DE DE19742406825 patent/DE2406825A1/de active Pending
- 1974-02-14 FR FR7405034A patent/FR2217711B1/fr not_active Expired
- 1974-02-14 US US00442554A patent/US3846807A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2217711B1 (ja) | 1976-06-25 |
| FR2217711A1 (ja) | 1974-09-06 |
| DE2406825A1 (de) | 1974-08-22 |
| US3846807A (en) | 1974-11-05 |