JPS5229957Y2 - - Google Patents
Info
- Publication number
- JPS5229957Y2 JPS5229957Y2 JP1973026156U JP2615673U JPS5229957Y2 JP S5229957 Y2 JPS5229957 Y2 JP S5229957Y2 JP 1973026156 U JP1973026156 U JP 1973026156U JP 2615673 U JP2615673 U JP 2615673U JP S5229957 Y2 JPS5229957 Y2 JP S5229957Y2
- 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
- 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
- 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
- G03B7/09976—Through the lens [TTL] measuring in mirror-reflex cameras the sensor being mounted in, before, or behind the porro-prism
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
- Exposure Control For Cameras (AREA)
- Cameras In General (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
- Optical Elements Other Than Lenses (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1973026156U JPS5229957Y2 (en, 2012) | 1973-03-01 | 1973-03-01 | |
| DE19742407606 DE2407606A1 (de) | 1973-03-01 | 1974-02-16 | Lichtmesseinrichtung fuer eine einaeugige spiegelreflexkamera |
| US444722A US3864702A (en) | 1973-03-01 | 1974-02-22 | Light measuring optical system for use in a reflex camera |
| GB914874A GB1456915A (en) | 1973-03-01 | 1974-02-28 | Light measuring optical system for use in a single lens reflex camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1973026156U JPS5229957Y2 (en, 2012) | 1973-03-01 | 1973-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49128240U JPS49128240U (en, 2012) | 1974-11-02 |
| JPS5229957Y2 true JPS5229957Y2 (en, 2012) | 1977-07-08 |
Family
ID=12185667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1973026156U Expired JPS5229957Y2 (en, 2012) | 1973-03-01 | 1973-03-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3864702A (en, 2012) |
| JP (1) | JPS5229957Y2 (en, 2012) |
| DE (1) | DE2407606A1 (en, 2012) |
| GB (1) | GB1456915A (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56252Y2 (en, 2012) * | 1974-09-30 | 1981-01-07 | ||
| US4064516A (en) * | 1976-03-10 | 1977-12-20 | Optigon Research & Development Corporation | Reflex camera light detecting arrangement |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3534671A (en) * | 1967-04-03 | 1970-10-20 | Nippon Kogaku Kk | Structure of eyepiece portion of the finder in single lens reflex cameras |
| JPS4513350Y1 (en, 2012) * | 1967-06-23 | 1970-06-08 | ||
| US3661065A (en) * | 1968-02-08 | 1972-05-09 | Yasuo Yamazaki | Device for optical focusing a glass fiber plate as a focusing screen |
| DE1772397B1 (de) * | 1968-03-02 | 1971-04-01 | Asahi Optical Co Ltd | Durch das Objektiv messender Belichtungsmesser fuer eine einaeugige Spiegelreflexkamera |
| US3631784A (en) * | 1969-02-14 | 1972-01-04 | Pentacon Dresden Veb | Reflex camera having a prismatic viewfinder and photoelectric exposure meter |
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1973
- 1973-03-01 JP JP1973026156U patent/JPS5229957Y2/ja not_active Expired
-
1974
- 1974-02-16 DE DE19742407606 patent/DE2407606A1/de active Pending
- 1974-02-22 US US444722A patent/US3864702A/en not_active Expired - Lifetime
- 1974-02-28 GB GB914874A patent/GB1456915A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1456915A (en) | 1976-12-01 |
| DE2407606A1 (de) | 1974-09-12 |
| US3864702A (en) | 1975-02-04 |
| JPS49128240U (en, 2012) | 1974-11-02 |