JPS4861142A - - Google Patents
Info
- Publication number
- JPS4861142A JPS4861142A JP46097498A JP9749871A JPS4861142A JP S4861142 A JPS4861142 A JP S4861142A JP 46097498 A JP46097498 A JP 46097498A JP 9749871 A JP9749871 A JP 9749871A JP S4861142 A JPS4861142 A JP S4861142A
- 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
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
-
- 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
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9749871A JPS5320854B2 (en:Method) | 1971-12-01 | 1971-12-01 | |
| US00309780A US3850530A (en) | 1971-12-01 | 1972-11-27 | Method and apparatus for measuring light which flickers |
| DE2258218A DE2258218C3 (de) | 1971-12-01 | 1972-11-28 | Anordnung zur Lichtmessung für fotografische Zwecke |
| GB5517372A GB1418917A (en) | 1971-12-01 | 1972-11-29 | Light measurement apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9749871A JPS5320854B2 (en:Method) | 1971-12-01 | 1971-12-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4861142A true JPS4861142A (en:Method) | 1973-08-27 |
| JPS5320854B2 JPS5320854B2 (en:Method) | 1978-06-29 |
Family
ID=14193914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9749871A Expired JPS5320854B2 (en:Method) | 1971-12-01 | 1971-12-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3850530A (en:Method) |
| JP (1) | JPS5320854B2 (en:Method) |
| DE (1) | DE2258218C3 (en:Method) |
| GB (1) | GB1418917A (en:Method) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50129222A (en:Method) * | 1974-04-02 | 1975-10-13 | ||
| JPS5833130A (ja) * | 1981-08-21 | 1983-02-26 | Yukiharu Hirao | 光線弁別器 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095241A (en) * | 1973-04-11 | 1978-06-13 | Canon Kabushiki Kaisha | Photo-sensing circuit |
| JPS5853327B2 (ja) * | 1975-01-31 | 1983-11-29 | 富士写真フイルム株式会社 | 撮影光光質検知のプリント処理方法および装置 |
| JPS51138144U (en:Method) * | 1975-04-30 | 1976-11-08 | ||
| US4035634A (en) * | 1975-10-31 | 1977-07-12 | Fuji Shashin Koki Kabushiki Kaisha | Light receptor device |
| US4258993A (en) * | 1976-10-05 | 1981-03-31 | Eastman Kodak Company | Light discrimination apparatus |
| DE2852530C3 (de) * | 1978-12-05 | 1981-05-21 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Photoelemente-Schaltung |
| JPS634984Y2 (en:Method) * | 1979-02-28 | 1988-02-10 | ||
| US4445778A (en) * | 1979-12-21 | 1984-05-01 | Fuji Photo Film Co., Ltd. | Method of and apparatus for measuring scene brightness |
| JPH03163538A (ja) * | 1989-11-22 | 1991-07-15 | Fuji Photo Film Co Ltd | カメラの光源種判定装置 |
| US5394217A (en) * | 1993-09-27 | 1995-02-28 | Eastman Kodak Company | Method and apparatus for determining line frequency and detecting variable frequency light sources |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294377A (en) * | 1941-07-31 | 1942-09-01 | Rca Corp | Photocell hum demodulator |
| US3550013A (en) * | 1969-01-10 | 1970-12-22 | Gse Inc | Noise cancelling system |
-
1971
- 1971-12-01 JP JP9749871A patent/JPS5320854B2/ja not_active Expired
-
1972
- 1972-11-27 US US00309780A patent/US3850530A/en not_active Expired - Lifetime
- 1972-11-28 DE DE2258218A patent/DE2258218C3/de not_active Expired
- 1972-11-29 GB GB5517372A patent/GB1418917A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50129222A (en:Method) * | 1974-04-02 | 1975-10-13 | ||
| JPS5833130A (ja) * | 1981-08-21 | 1983-02-26 | Yukiharu Hirao | 光線弁別器 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2258218C3 (de) | 1974-11-07 |
| JPS5320854B2 (en:Method) | 1978-06-29 |
| DE2258218B2 (de) | 1974-04-11 |
| US3850530A (en) | 1974-11-26 |
| GB1418917A (en) | 1975-12-24 |
| DE2258218A1 (de) | 1973-06-14 |