JPS57185021A - Photometric device of single-lense reflex camera - Google Patents
Photometric device of single-lense reflex cameraInfo
- Publication number
- JPS57185021A JPS57185021A JP56069769A JP6976981A JPS57185021A JP S57185021 A JPS57185021 A JP S57185021A JP 56069769 A JP56069769 A JP 56069769A JP 6976981 A JP6976981 A JP 6976981A JP S57185021 A JPS57185021 A JP S57185021A
- Authority
- JP
- Japan
- Prior art keywords
- light
- photodetector
- detector
- lines
- photometric device
- Prior art date
- 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
- G03B7/099—Arrangement of photoelectric elements in or on the camera
- G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
- G03B7/0997—Through the lens [TTL] measuring
- G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
- G03B7/09974—Through the lens [TTL] measuring in mirror-reflex cameras using the film or shutter as sensor light reflecting member
-
- 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
- G03B7/099—Arrangement of photoelectric elements in or on the camera
- G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
- G03B7/0997—Through the lens [TTL] measuring
- G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
- G03B7/09972—Through the lens [TTL] measuring in mirror-reflex cameras using the mirror as sensor light reflecting or transmitting member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
- Exposure Control For Cameras (AREA)
- Cameras In General (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56069769A JPS57185021A (en) | 1981-05-09 | 1981-05-09 | Photometric device of single-lense reflex camera |
US06/371,017 US4443081A (en) | 1981-05-09 | 1982-04-22 | Metering device of a single lens reflex camera |
DE19823217221 DE3217221A1 (de) | 1981-05-09 | 1982-05-07 | Messvorrichtung fuer eine einaeugige spiegelreflexkamera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56069769A JPS57185021A (en) | 1981-05-09 | 1981-05-09 | Photometric device of single-lense reflex camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57185021A true JPS57185021A (en) | 1982-11-15 |
Family
ID=13412328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56069769A Pending JPS57185021A (en) | 1981-05-09 | 1981-05-09 | Photometric device of single-lense reflex camera |
Country Status (3)
Country | Link |
---|---|
US (1) | US4443081A (ja) |
JP (1) | JPS57185021A (ja) |
DE (1) | DE3217221A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5951335U (ja) * | 1982-09-28 | 1984-04-04 | オリンパス光学工業株式会社 | Ttlオ−トストロボ発光制御回路 |
US4591256A (en) * | 1982-11-08 | 1986-05-27 | Canon Kabushiki Kaisha | Beam splitter and light measuring device for camera |
US4660968A (en) * | 1985-04-09 | 1987-04-28 | Minnesota Mining And Manufacturing Company | Automatic exposure control |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779146A (en) * | 1970-05-27 | 1973-12-18 | Pentacon Dresden Veb | Reflex photographic cameras |
JPS51144634A (en) * | 1975-06-06 | 1976-12-11 | Canon Inc | Photo-divider |
JPS5614496U (ja) * | 1979-07-12 | 1981-02-07 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3464337A (en) * | 1966-04-15 | 1969-09-02 | Pentacon Dresden Veb | Mirror reflex camera with internal photoelectric light meter |
JPS5926934B2 (ja) * | 1975-09-26 | 1984-07-02 | ミノルタ株式会社 | Ttl測光式露出制御カメラ |
JPS55123929U (ja) * | 1979-02-23 | 1980-09-03 | ||
US4348088A (en) * | 1979-07-10 | 1982-09-07 | Canon Kabushiki Kaisha | Single lens reflex camera |
JPS5727222A (en) * | 1980-07-25 | 1982-02-13 | Canon Inc | Optical separator |
-
1981
- 1981-05-09 JP JP56069769A patent/JPS57185021A/ja active Pending
-
1982
- 1982-04-22 US US06/371,017 patent/US4443081A/en not_active Expired - Lifetime
- 1982-05-07 DE DE19823217221 patent/DE3217221A1/de active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3779146A (en) * | 1970-05-27 | 1973-12-18 | Pentacon Dresden Veb | Reflex photographic cameras |
JPS51144634A (en) * | 1975-06-06 | 1976-12-11 | Canon Inc | Photo-divider |
JPS5614496U (ja) * | 1979-07-12 | 1981-02-07 |
Also Published As
Publication number | Publication date |
---|---|
DE3217221A1 (de) | 1982-11-25 |
US4443081A (en) | 1984-04-17 |
DE3217221C2 (ja) | 1991-01-03 |
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