GB587199A - Improvements in or relating to a photographic camera provided with a range finder - Google Patents
Improvements in or relating to a photographic camera provided with a range finderInfo
- Publication number
- GB587199A GB587199A GB22599/44A GB2259944A GB587199A GB 587199 A GB587199 A GB 587199A GB 22599/44 A GB22599/44 A GB 22599/44A GB 2259944 A GB2259944 A GB 2259944A GB 587199 A GB587199 A GB 587199A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- lever
- range
- finder
- pivoted
- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
- G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
- Focusing (AREA)
Abstract
587,199. Photographic cameras with coupled range-finders. KODAK, Ltd. Nov. 15, 1944, No. 22599. Convention date, Dec. 31, 1943. [Class 98 (i)] In a camera for use with interchangeable lenses of different focal lengths and having a member adjustable for focusing, a range-finder whose optical deviating element is carried by a lever pivoted on the camera, is combined with a second lever, pivoted on but movable as a unit with the focusing member and supporting a cam engaged by a pin on the first lever to move the optical deviating element about the pivot of the first lever and a second cam adjustably mounted on the focusing member for varying the inclination of the first cam relative to its direction of movement to correlate range-finder adjustments for different lenses. As shown in Fig. 1, the camera body 11 hasmounted thereon a lens holder (not shown) adapted to receive lenses of different focal lengths and has a focusing member comprising a film holder or back 13. Lenses 17, 18 and prisms 19-23 constitute the usual short home base range-finder of which the optical deviating element is the prism 20, which is mounted on a lever 29, pivoted at 30 and having at its free end 32 a pin 33 held, by a spring 54, in engagement with a straight cam 34 on one arm 35 of a bell-crank lever 38, pivotally mounted at 40 on the top 36 of the focusing member 13. The inclination of the cam is such that, as the member 13 is moved to focus an object, the range-finder element 20 is correspondingly adjusted so that when coincidence is observed through the ocular 24, 25 the object will be in focus in the camera. In order that the inclination of the cam 34 may be pre-set to correspond to the focal length of the lens in use, the arm 39 of the bell-crank lever 38 is turned down at 45 to engage, under the action of a spring 53, with a cam 47 pivoted on the member 13 and , adjustable by a sealed knob 50.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US587199XA | 1943-12-31 | 1943-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB587199A true GB587199A (en) | 1947-04-17 |
Family
ID=22018506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22599/44A Expired GB587199A (en) | 1943-12-31 | 1944-11-15 | Improvements in or relating to a photographic camera provided with a range finder |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB587199A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973722C (en) * | 1948-10-02 | 1960-05-19 | Linhof | camera |
-
1944
- 1944-11-15 GB GB22599/44A patent/GB587199A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973722C (en) * | 1948-10-02 | 1960-05-19 | Linhof | camera |
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