FR862934A - Viseur optique perfectionné - Google Patents
Viseur optique perfectionnéInfo
- Publication number
- FR862934A FR862934A FR862934DA FR862934A FR 862934 A FR862934 A FR 862934A FR 862934D A FR862934D A FR 862934DA FR 862934 A FR862934 A FR 862934A
- Authority
- FR
- France
- Prior art keywords
- optical viewfinder
- advanced optical
- advanced
- viewfinder
- optical
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR862934T | 1939-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR862934A true FR862934A (fr) | 1941-03-19 |
Family
ID=9343032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR862934D Expired FR862934A (fr) | 1939-09-12 | 1939-09-12 | Viseur optique perfectionné |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR862934A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2974560A (en) * | 1957-01-30 | 1961-03-14 | Voigtiander A G | Photographic view-finder |
US3230819A (en) * | 1962-07-25 | 1966-01-25 | Bendix Corp | Optical display means for an all weather landing system of an aircraft |
US4390276A (en) * | 1980-05-14 | 1983-06-28 | Ring Sights Limited | Collimator gunsight |
US4665622A (en) * | 1985-11-18 | 1987-05-19 | Elbit Computers, Ltd. | Optical sighting device |
-
1939
- 1939-09-12 FR FR862934D patent/FR862934A/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2974560A (en) * | 1957-01-30 | 1961-03-14 | Voigtiander A G | Photographic view-finder |
US3230819A (en) * | 1962-07-25 | 1966-01-25 | Bendix Corp | Optical display means for an all weather landing system of an aircraft |
US4390276A (en) * | 1980-05-14 | 1983-06-28 | Ring Sights Limited | Collimator gunsight |
US4665622A (en) * | 1985-11-18 | 1987-05-19 | Elbit Computers, Ltd. | Optical sighting device |
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