GB909456A - Improvements in and relating to photographic cameras - Google Patents
Improvements in and relating to photographic camerasInfo
- Publication number
- GB909456A GB909456A GB293459A GB293459A GB909456A GB 909456 A GB909456 A GB 909456A GB 293459 A GB293459 A GB 293459A GB 293459 A GB293459 A GB 293459A GB 909456 A GB909456 A GB 909456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- cam
- wheel
- pointer
- follow
- 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
- G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark
- G03B7/06—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark by a follow-up movement of an associated reference mark to the pointer
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Blocking Light For Cameras (AREA)
- Diaphragms For Cameras (AREA)
Abstract
909,456. Photographic cameras. VOIGTLANDER A.G. Jan. 27, 1959 [July 4, 1958], No. 2934/59. Class 98 (1). A photographic camera, preferably a reflex camera, comprises a manual adjusting member for two trains of transmission gearing to be adjusted simultaneously and in a related manner; one of the trains has parts coupled together by meshing teeth so that there is play, while the other is constructed free of play but with an adjusting device by means of which play equal to that of the other train can be introduced. In the embodiment shown, adjustable rings 4, 5 for exposure time and stop value are adjustable simultaneously in the same direction by the rotation of a shaft 20 acting through a movable ring 23 and pinion 25 rotatably mounted on ring 23, or in opposite directions by rotating ring 4. The shaft 20 is connected through tooth wheels 29-32 to a wheel 45, projections 46 of which rest in notches 38 of a cylinder attached to wheel 32. A disc 50 couples a film sensitivity disc 58 and a cam disc 41 to the wheel 45. The follow-up pointer of an exposure meter is connected to a spindle which can be rotated indirectly by the cam disc 40. A tooth 53 can be disconnected from teeth 47 of wheel 45 and when disc 50 is then rotated the film sensitivity indicator 58 moves with respect to index 60 and the follow-up pointer is also moved to a position corresponding to sensitivity. When tooth 53 engages teeth 47, rotation of wheel 45 rotates both the follow-up pointer and the rings 5, 4 by a corresponding amount. In order to introduce the desired extra play into the cam 40 and follow-up pointer train, prongs 54 of disc 50 which move in aperture 55 of cam 41 are bent outwards or inwards by a requisite amount to delay rotation of said cam, if a light filter is used. After the shutter has been adjusted disc 45 is rotated further using reference marks 43 on cam 41 and a scale on the camera housing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV14655A DE1244566B (en) | 1958-07-04 | 1958-07-04 | Photographic camera with an adjustment handle for two gears |
Publications (1)
Publication Number | Publication Date |
---|---|
GB909456A true GB909456A (en) | 1962-10-31 |
Family
ID=7574666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB293459A Expired GB909456A (en) | 1958-07-04 | 1959-01-27 | Improvements in and relating to photographic cameras |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH365942A (en) |
DE (1) | DE1244566B (en) |
GB (1) | GB909456A (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1711010U (en) * | 1955-07-16 | 1955-11-17 | Zeiss Ikon Dresden Veb | CAM GEAR FOR MEASURING INSTRUMENTS. |
-
1958
- 1958-07-04 DE DEV14655A patent/DE1244566B/en active Pending
- 1958-12-31 CH CH6783858A patent/CH365942A/en unknown
-
1959
- 1959-01-27 GB GB293459A patent/GB909456A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1244566B (en) | 1967-07-13 |
CH365942A (en) | 1962-11-30 |
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