JPS4835824A - - Google Patents
Info
- Publication number
- JPS4835824A JPS4835824A JP46069874A JP6987471A JPS4835824A JP S4835824 A JPS4835824 A JP S4835824A JP 46069874 A JP46069874 A JP 46069874A JP 6987471 A JP6987471 A JP 6987471A JP S4835824 A JPS4835824 A JP S4835824A
- 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.)
- Granted
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
- G03B7/18—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with light-reducing "factor" of filter or other obturator used with or on the lens of the camera
-
- 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
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
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- 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)
- Exposure Control For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46069874A JPS5119781B2 (en:Method) | 1971-09-09 | 1971-09-09 | |
| US00281024A US3747485A (en) | 1971-09-09 | 1972-08-16 | Camera controls for coupled and non-coupled objectives |
| DE19722243440 DE2243440B2 (de) | 1971-09-09 | 1972-09-04 | Vorrichtung fuer eine einaeugige spiegelreflexkamera mit auswechselbaren objektiven |
| GB4163372A GB1409313A (en) | 1971-09-09 | 1972-09-07 | Single lens reflex cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46069874A JPS5119781B2 (en:Method) | 1971-09-09 | 1971-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4835824A true JPS4835824A (en:Method) | 1973-05-26 |
| JPS5119781B2 JPS5119781B2 (en:Method) | 1976-06-19 |
Family
ID=13415353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46069874A Expired JPS5119781B2 (en:Method) | 1971-09-09 | 1971-09-09 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3747485A (en:Method) |
| JP (1) | JPS5119781B2 (en:Method) |
| DE (1) | DE2243440B2 (en:Method) |
| GB (1) | GB1409313A (en:Method) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53163133U (en:Method) * | 1977-05-28 | 1978-12-20 | ||
| JPS5466282U (en:Method) * | 1977-10-19 | 1979-05-11 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757364Y2 (en:Method) * | 1972-09-02 | 1982-12-09 | ||
| DD103968A1 (en:Method) * | 1973-04-11 | 1974-02-12 | ||
| US4124855A (en) * | 1974-07-26 | 1978-11-07 | Canon Kabushiki Kaisha | Automatic exposure control apparatus and a camera having the same |
| US5652921A (en) * | 1993-11-08 | 1997-07-29 | Asahi Kogaku Kogyo Kabushiki Kaisha | System for controlling an aperture of a lens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3563153A (en) * | 1967-09-21 | 1971-02-16 | Asahi Optical Co Ltd | Camera light measuring system |
| US3650193A (en) * | 1968-12-23 | 1972-03-21 | Copal Co Ltd | Bulb and time exposure control device for photographic camera |
| US3683765A (en) * | 1969-01-29 | 1972-08-15 | Canon Kk | Apparatus to determine an amount of exposure |
| CH513415A (de) * | 1969-10-22 | 1971-09-30 | Compur Werk Gmbh & Co | Photographische Kamera mit auswechselbarem Objektivverschluss |
| US3678823A (en) * | 1969-11-14 | 1972-07-25 | Copal Co Ltd | Electronic shutter for through-the-lens camera having interchangeable lenses of differing aperture |
-
1971
- 1971-09-09 JP JP46069874A patent/JPS5119781B2/ja not_active Expired
-
1972
- 1972-08-16 US US00281024A patent/US3747485A/en not_active Expired - Lifetime
- 1972-09-04 DE DE19722243440 patent/DE2243440B2/de active Granted
- 1972-09-07 GB GB4163372A patent/GB1409313A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53163133U (en:Method) * | 1977-05-28 | 1978-12-20 | ||
| JPS5466282U (en:Method) * | 1977-10-19 | 1979-05-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5119781B2 (en:Method) | 1976-06-19 |
| DE2243440A1 (de) | 1973-03-15 |
| GB1409313A (en) | 1975-10-08 |
| DE2243440B2 (de) | 1976-12-16 |
| US3747485A (en) | 1973-07-24 |