DD115764A1 - - Google Patents
Info
- Publication number
- DD115764A1 DD115764A1 DD179713A DD17971374A DD115764A1 DD 115764 A1 DD115764 A1 DD 115764A1 DD 179713 A DD179713 A DD 179713A DD 17971374 A DD17971374 A DD 17971374A DD 115764 A1 DD115764 A1 DD 115764A1
- Authority
- DD
- German Democratic Republic
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)
- Diaphragms For Cameras (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD179713A DD115764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-05 | 1974-07-05 | |
| DE19752515514 DE2515514A1 (de) | 1974-06-17 | 1975-04-09 | Einrichtung zur automatischen belichtungssteuerung |
| GB2231375A GB1474155A (en) | 1974-06-17 | 1975-05-22 | Cameras having means for automatic exposure control |
| JP50062584A JPS513629A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-06-17 | 1975-05-27 | |
| US05/587,035 US4040111A (en) | 1974-07-05 | 1975-06-16 | Camera automatic exposure control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD179713A DD115764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-05 | 1974-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD115764A1 true DD115764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-10-12 |
Family
ID=5496473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD179713A DD115764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-06-17 | 1974-07-05 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4040111A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| DD (1) | DD115764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4176929A (en) * | 1977-06-21 | 1979-12-04 | Canon Kabushiki Kaisha | Exposure control device for a camera |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1291616B (de) * | 1964-12-28 | 1969-03-27 | Prontor Werk Gauthier Gmbh | Photographische Kamera mit selbsttaetiger, lichtgesteuerter Blenden- und Zeiteinstellung |
| US3643575A (en) * | 1967-10-31 | 1972-02-22 | Nippon Kogaku Kk | Exposure-measuring device in a single-lens reflex camera |
| US3810206A (en) * | 1971-06-01 | 1974-05-07 | Cann Kk | Exposure control device |
| JPS4879627A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-01-26 | 1973-10-25 |
-
1974
- 1974-07-05 DD DD179713A patent/DD115764A1/xx unknown
-
1975
- 1975-06-16 US US05/587,035 patent/US4040111A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4040111A (en) | 1977-08-02 |