JPS5127589B2 - - Google Patents
Info
- Publication number
- JPS5127589B2 JPS5127589B2 JP48046117A JP4611773A JPS5127589B2 JP S5127589 B2 JPS5127589 B2 JP S5127589B2 JP 48046117 A JP48046117 A JP 48046117A JP 4611773 A JP4611773 A JP 4611773A JP S5127589 B2 JPS5127589 B2 JP S5127589B2
- 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.)
- Expired
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
- G03B7/093—Digital circuits for control of exposure time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Exposure Control For Cameras (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Shutter-Related Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48046117A JPS5127589B2 (ja) | 1973-04-25 | 1973-04-25 | |
US461383A US3921183A (en) | 1973-04-25 | 1974-04-16 | Automatic exposure control systems and light metering systems for cameras |
DE2419507A DE2419507C3 (de) | 1973-04-25 | 1974-04-23 | Kamera mit automatischer Belichtungssteuerung |
GB1793474A GB1464769A (en) | 1973-04-25 | 1974-04-24 | Automaitc exposure control systems and light metering systems for cameras |
FR7414281A FR2227516B1 (ja) | 1973-04-25 | 1974-04-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48046117A JPS5127589B2 (ja) | 1973-04-25 | 1973-04-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS49133028A JPS49133028A (ja) | 1974-12-20 |
JPS5127589B2 true JPS5127589B2 (ja) | 1976-08-13 |
Family
ID=12738040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48046117A Expired JPS5127589B2 (ja) | 1973-04-25 | 1973-04-25 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3921183A (ja) |
JP (1) | JPS5127589B2 (ja) |
DE (1) | DE2419507C3 (ja) |
FR (1) | FR2227516B1 (ja) |
GB (1) | GB1464769A (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127053A (en) * | 1974-08-30 | 1976-03-06 | Canon Kk | Tanyuryokuyo aad henkansochi |
US4162839A (en) * | 1974-08-30 | 1979-07-31 | Canon Kabushiki Kaisha | Dual preference camera for digitally displaying preset and computered valves |
JPS51140725A (en) * | 1975-05-30 | 1976-12-03 | Fuji Photo Optical Co Ltd | Exposure time control unit |
JPS5947289B2 (ja) * | 1975-10-27 | 1984-11-17 | アサヒコウガクコウギヨウ カブシキガイシヤ | Ledオモチイタ フアインダ−ナイヒヨウジソウチ |
US4279487A (en) * | 1980-03-07 | 1981-07-21 | Polaroid Corporation | Adapter for coupling a camera to an optical instrument |
US4498140A (en) * | 1982-06-02 | 1985-02-05 | Chesley F. Carlson | Automated self calibrating exposure computer |
US20090002535A1 (en) * | 2007-06-27 | 2009-01-01 | Arizona Board Of Regents On Behalf Of Arizona State University | Offset-compensated self-reset cmos image sensors |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211223B1 (ja) * | 1970-04-06 | 1977-03-29 | ||
US3836262A (en) * | 1971-07-07 | 1974-09-17 | Minolta Camera Kk | Indicator circuit |
US3827065A (en) * | 1971-08-30 | 1974-07-30 | Copal Co Ltd | Warning circuit of an electric shutter |
-
1973
- 1973-04-25 JP JP48046117A patent/JPS5127589B2/ja not_active Expired
-
1974
- 1974-04-16 US US461383A patent/US3921183A/en not_active Expired - Lifetime
- 1974-04-23 DE DE2419507A patent/DE2419507C3/de not_active Expired
- 1974-04-24 FR FR7414281A patent/FR2227516B1/fr not_active Expired
- 1974-04-24 GB GB1793474A patent/GB1464769A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS49133028A (ja) | 1974-12-20 |
DE2419507B2 (de) | 1979-12-06 |
US3921183A (en) | 1975-11-18 |
FR2227516A1 (ja) | 1974-11-22 |
GB1464769A (en) | 1977-02-16 |
FR2227516B1 (ja) | 1976-12-17 |
DE2419507A1 (de) | 1974-11-14 |
DE2419507C3 (de) | 1980-08-21 |