JPS4838140A - - Google Patents
Info
- Publication number
- JPS4838140A JPS4838140A JP46071510A JP7151071A JPS4838140A JP S4838140 A JPS4838140 A JP S4838140A JP 46071510 A JP46071510 A JP 46071510A JP 7151071 A JP7151071 A JP 7151071A JP S4838140 A JPS4838140 A JP S4838140A
- 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
- G03B19/00—Cameras
- G03B19/18—Motion-picture cameras
-
- 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)
- Blocking Light For Cameras (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46071510A JPS4838140A (enExample) | 1971-09-14 | 1971-09-14 | |
| US00288884A US3801822A (en) | 1971-09-14 | 1972-09-13 | Exposure control device |
| DE19727233934U DE7233934U (de) | 1971-09-14 | 1972-09-14 | Belichtungssteuerungsvorrichtung |
| DE2245184A DE2245184C3 (de) | 1971-09-14 | 1972-09-14 | Automatische Belichtungssteuerungsvorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46071510A JPS4838140A (enExample) | 1971-09-14 | 1971-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4838140A true JPS4838140A (enExample) | 1973-06-05 |
Family
ID=13462752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46071510A Pending JPS4838140A (enExample) | 1971-09-14 | 1971-09-14 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3801822A (enExample) |
| JP (1) | JPS4838140A (enExample) |
| DE (2) | DE7233934U (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4851871A (en) * | 1986-03-17 | 1989-07-25 | Copal Company Limited | Driving unit using electrostrictive element |
| US7567286B2 (en) * | 1998-02-02 | 2009-07-28 | Canon Kabushiki Kaisha | Image pickup apparatus |
| JP2004198854A (ja) * | 2002-12-19 | 2004-07-15 | Tamron Co Ltd | 光量調整カバー、撮像装置、撮像装置設置方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3511145A (en) * | 1967-05-30 | 1970-05-12 | Eastman Kodak Co | Photographic camera with an exposure control device |
| US3651749A (en) * | 1970-10-01 | 1972-03-28 | Eastman Kodak Co | Exposure control apparatus |
-
1971
- 1971-09-14 JP JP46071510A patent/JPS4838140A/ja active Pending
-
1972
- 1972-09-13 US US00288884A patent/US3801822A/en not_active Expired - Lifetime
- 1972-09-14 DE DE19727233934U patent/DE7233934U/de not_active Expired
- 1972-09-14 DE DE2245184A patent/DE2245184C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2245184A1 (de) | 1973-03-22 |
| DE2245184B2 (de) | 1974-11-14 |
| US3801822A (en) | 1974-04-02 |
| DE2245184C3 (de) | 1975-06-26 |
| DE7233934U (de) | 1973-02-01 |