FR1081317A - Reflective mirror camera, with illumination measurement by the shooting lens - Google Patents
Reflective mirror camera, with illumination measurement by the shooting lensInfo
- Publication number
- FR1081317A FR1081317A FR1081317DA FR1081317A FR 1081317 A FR1081317 A FR 1081317A FR 1081317D A FR1081317D A FR 1081317DA FR 1081317 A FR1081317 A FR 1081317A
- Authority
- FR
- France
- Prior art keywords
- reflective mirror
- shooting lens
- mirror camera
- illumination measurement
- illumination
- 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.)
- 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
- G03B7/099—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
- G03B7/09977—Through the lens [TTL] measuring in mirror-reflex cameras with a movable light-measuring element
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE314355X | 1952-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1081317A true FR1081317A (en) | 1954-12-17 |
Family
ID=6145479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1081317D Expired FR1081317A (en) | 1952-08-04 | 1953-07-15 | Reflective mirror camera, with illumination measurement by the shooting lens |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH314355A (en) |
FR (1) | FR1081317A (en) |
GB (1) | GB777106A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2914997A (en) * | 1956-10-03 | 1959-12-01 | Polaroid Corp | Combined range and view finder for cameras |
-
1953
- 1953-05-27 CH CH314355D patent/CH314355A/en unknown
- 1953-07-15 FR FR1081317D patent/FR1081317A/en not_active Expired
- 1953-07-30 GB GB21213/53A patent/GB777106A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH314355A (en) | 1956-06-15 |
GB777106A (en) | 1957-06-19 |
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