JPS5145530A - - Google Patents
Info
- Publication number
- JPS5145530A JPS5145530A JP11980274A JP11980274A JPS5145530A JP S5145530 A JPS5145530 A JP S5145530A JP 11980274 A JP11980274 A JP 11980274A JP 11980274 A JP11980274 A JP 11980274A JP S5145530 A JPS5145530 A JP S5145530A
- 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
- G03B7/091—Digital circuits
- G03B7/097—Digital circuits for control of both exposure time and aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11980274A JPS5145530A (US07754267-20100713-C00021.png) | 1974-10-17 | 1974-10-17 | |
| US05/622,834 US4029421A (en) | 1974-10-17 | 1975-10-16 | Digital exposure meter |
| DE2546678A DE2546678C2 (de) | 1974-10-17 | 1975-10-17 | Belichtungsmeß- und -steuerschaltung für eine Kamera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11980274A JPS5145530A (US07754267-20100713-C00021.png) | 1974-10-17 | 1974-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5145530A true JPS5145530A (US07754267-20100713-C00021.png) | 1976-04-19 |
Family
ID=14770572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11980274A Pending JPS5145530A (US07754267-20100713-C00021.png) | 1974-10-17 | 1974-10-17 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4029421A (US07754267-20100713-C00021.png) |
| JP (1) | JPS5145530A (US07754267-20100713-C00021.png) |
| DE (1) | DE2546678C2 (US07754267-20100713-C00021.png) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54106282A (en) * | 1978-02-07 | 1979-08-21 | Minolta Camera Co Ltd | Photometric method and apparatus |
| JPS5879234A (ja) * | 1981-11-06 | 1983-05-13 | Nippon Kogaku Kk <Nikon> | カメラの表示装置 |
| JPS5879232A (ja) * | 1981-11-06 | 1983-05-13 | Nippon Kogaku Kk <Nikon> | 自動露出制御カメラの表示装置 |
| JPS58142323A (ja) * | 1982-02-19 | 1983-08-24 | Sekonitsuku:Kk | 露出制御値表示装置 |
| JPS60196245A (ja) * | 1984-03-19 | 1985-10-04 | Sumitomo Cement Co Ltd | 鋳物砂組成物 |
| JPS60220830A (ja) * | 1985-02-18 | 1985-11-05 | Minolta Camera Co Ltd | 露出計 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5730822A (en) * | 1980-07-31 | 1982-02-19 | Olympus Optical Co Ltd | Average photometry method at plural points of automatic exposure camera |
| JPS58184137A (ja) * | 1982-04-21 | 1983-10-27 | Olympus Optical Co Ltd | カメラ |
| GB2169089B (en) * | 1984-11-21 | 1989-10-11 | Canon Kk | Camera |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4882904A (US07754267-20100713-C00021.png) * | 1972-02-04 | 1973-11-06 | ||
| DE2410959A1 (de) * | 1973-03-07 | 1974-09-12 | Canon Kk | Elektronische belichtungssteuerschaltung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025336B1 (US07754267-20100713-C00021.png) * | 1967-11-28 | 1975-08-22 | ||
| DE2339110B2 (de) * | 1972-08-03 | 1979-09-13 | Minolta Camera K.K., Osaka (Japan) | Vorrichtung zur Messung der Objekthelligkeit und zum Steuern der Belichtung in einer Kamera |
| JPS5434552B2 (US07754267-20100713-C00021.png) * | 1973-06-18 | 1979-10-27 |
-
1974
- 1974-10-17 JP JP11980274A patent/JPS5145530A/ja active Pending
-
1975
- 1975-10-16 US US05/622,834 patent/US4029421A/en not_active Expired - Lifetime
- 1975-10-17 DE DE2546678A patent/DE2546678C2/de not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4882904A (US07754267-20100713-C00021.png) * | 1972-02-04 | 1973-11-06 | ||
| DE2410959A1 (de) * | 1973-03-07 | 1974-09-12 | Canon Kk | Elektronische belichtungssteuerschaltung |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54106282A (en) * | 1978-02-07 | 1979-08-21 | Minolta Camera Co Ltd | Photometric method and apparatus |
| JPS61572B2 (US07754267-20100713-C00021.png) * | 1978-02-07 | 1986-01-09 | Minolta Camera Kk | |
| JPS5879234A (ja) * | 1981-11-06 | 1983-05-13 | Nippon Kogaku Kk <Nikon> | カメラの表示装置 |
| JPS5879232A (ja) * | 1981-11-06 | 1983-05-13 | Nippon Kogaku Kk <Nikon> | 自動露出制御カメラの表示装置 |
| JPS58142323A (ja) * | 1982-02-19 | 1983-08-24 | Sekonitsuku:Kk | 露出制御値表示装置 |
| JPS60196245A (ja) * | 1984-03-19 | 1985-10-04 | Sumitomo Cement Co Ltd | 鋳物砂組成物 |
| JPS60220830A (ja) * | 1985-02-18 | 1985-11-05 | Minolta Camera Co Ltd | 露出計 |
| JPH0433383B2 (US07754267-20100713-C00021.png) * | 1985-02-18 | 1992-06-02 | Minolta Camera Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| US4029421A (en) | 1977-06-14 |
| DE2546678A1 (de) | 1976-04-29 |
| DE2546678C2 (de) | 1986-07-17 |
