GB521491A - Improvements in or relating to view finders for photographic or cinematograph cameras - Google Patents
Improvements in or relating to view finders for photographic or cinematograph camerasInfo
- Publication number
- GB521491A GB521491A GB26082/38A GB2608238A GB521491A GB 521491 A GB521491 A GB 521491A GB 26082/38 A GB26082/38 A GB 26082/38A GB 2608238 A GB2608238 A GB 2608238A GB 521491 A GB521491 A GB 521491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- view
- finder
- photographic
- relating
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/14—Viewfinders
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Viewfinders (AREA)
Abstract
521,491. View - finders for photographic cameras. ZEISS IKON AKT.-GES. Sept. 6, 1938, No. 26082. Convention date, Sept. 6, 1937. [Class 98 (i)] A view-finder for photographic cameras comprises opaque means 3 bounding a light-permeable frame 9 arranged directly in front of the outlook aperture, together with reflecting means to form an image of the frame at infinity to indicate the boundaries of the included view. In the finder shown, light passing through the frame 9 is reflected from a silvered frame-like arm 5 on the face of a glass block 4 to the semisilvered concave surface of the lens 2, which forms the image of the frame. The view-finder is shown combined with a range-finder having rotary wedges 7, 8 and a mirror base 6.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE521491X | 1937-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB521491A true GB521491A (en) | 1940-05-23 |
Family
ID=6551390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26082/38A Expired GB521491A (en) | 1937-09-06 | 1938-09-06 | Improvements in or relating to view finders for photographic or cinematograph cameras |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB521491A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2994257A (en) * | 1958-09-19 | 1961-08-01 | Voigtlaender Ag | Camera provided with built-in view finder and exposure meter |
US2999416A (en) * | 1957-10-02 | 1961-09-12 | Voigtlaender Ag | Photographic measuring finder |
US3012464A (en) * | 1958-03-12 | 1961-12-12 | Voigtlaender Ag | Measuring finder for photographic purposes |
-
1938
- 1938-09-06 GB GB26082/38A patent/GB521491A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2999416A (en) * | 1957-10-02 | 1961-09-12 | Voigtlaender Ag | Photographic measuring finder |
US3012464A (en) * | 1958-03-12 | 1961-12-12 | Voigtlaender Ag | Measuring finder for photographic purposes |
US2994257A (en) * | 1958-09-19 | 1961-08-01 | Voigtlaender Ag | Camera provided with built-in view finder and exposure meter |
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