GB476875A - Improvements in or relating to photographic and kinematograph cameras provided with exposure meters - Google Patents
Improvements in or relating to photographic and kinematograph cameras provided with exposure metersInfo
- Publication number
- GB476875A GB476875A GB1656336A GB1656336A GB476875A GB 476875 A GB476875 A GB 476875A GB 1656336 A GB1656336 A GB 1656336A GB 1656336 A GB1656336 A GB 1656336A GB 476875 A GB476875 A GB 476875A
- Authority
- GB
- United Kingdom
- Prior art keywords
- camera
- lens
- photographic
- lenses
- cell
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
476,875. Photographic and kinematograph cameras with exposure meters. CARMICHAEL, P. K. June 13, 1936, No. 16563. [Class 98 (i)] In cameras in which an exposure meter is mounted in the camera outside the field of a lens m position for photographic use, the lens is secured to a support pivotally or slidably mounted on the camera so as to be movable either into position for use with the testing means or into position for photographic use. The exposure meter preferably comprises a photo-electric cell connected to an indicator and the lens is mounted with an associated diaphragm so that the diaphragm is in front of the cell when in test position. A lens turret with two or more lenses rotatably mounted on the camera may be used. In the form shown, three lenses 3, 4, 5, Fig. 2, are carried on a rotatable disc 2 and may be moved from photographing position, to a position in front of the cell 7 connected to a moving coil measuring instrument 9, 10 having a pointer 11 visible in a window 19 in the rear of the camera. A drum 13, Fig. 3, carries a series of scales of camera speeds 12 associated with emulsion speeds 18 so that the appropriate camera speed for a given emulsion speed may be determined by rotating the drum. The scales may be fixed and a movable mask provided in the window 19. The lens or lenses may also be mounted on slides on the camera front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1656336A GB476875A (en) | 1936-06-13 | 1936-06-13 | Improvements in or relating to photographic and kinematograph cameras provided with exposure meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1656336A GB476875A (en) | 1936-06-13 | 1936-06-13 | Improvements in or relating to photographic and kinematograph cameras provided with exposure meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB476875A true GB476875A (en) | 1937-12-13 |
Family
ID=10079565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1656336A Expired GB476875A (en) | 1936-06-13 | 1936-06-13 | Improvements in or relating to photographic and kinematograph cameras provided with exposure meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB476875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2579661A (en) * | 1949-04-28 | 1951-12-25 | Photo Res Corp | Light measuring meter |
-
1936
- 1936-06-13 GB GB1656336A patent/GB476875A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2579661A (en) * | 1949-04-28 | 1951-12-25 | Photo Res Corp | Light measuring meter |
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