GB562233A - Optical sighting or viewing devices - Google Patents
Optical sighting or viewing devicesInfo
- Publication number
- GB562233A GB562233A GB1618841A GB1618841A GB562233A GB 562233 A GB562233 A GB 562233A GB 1618841 A GB1618841 A GB 1618841A GB 1618841 A GB1618841 A GB 1618841A GB 562233 A GB562233 A GB 562233A
- Authority
- GB
- United Kingdom
- Prior art keywords
- graticule
- sighting
- reflector
- curties
- infinity
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/30—Reflecting-sights specially adapted for smallarms or ordnance
-
- 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
- G03B13/02—Viewfinders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Telescopes (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Elements Other Than Lenses (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
562,233. Sighting devices. CURTIES, C. L., and OFFER, T. J., (trading as BAKER, C., and CURTIES, M. G. L.). Dec. 15, 1941,' No. 16188.' [Class 97 (i)] In sighting apparatus comprising a concaveconvex transmissive reflector in the sighting tube to produce an image at infinity of an illuminated graticule, the radii of the two surfaces of the reflector are so selected that the images they respectively produce are coincident; the graticule, may be an opaque background having a transparent pattern thereon, may be artificially or naturally lighted, or self luminous and its luminosity may be variable. As shown, a graticule 1 backed by a diffusing screen 2 is lighted by a lamp 3 and condenser 4 in a casing 5, and a transmissive concave-convex glass element 6 having its concave surface facing the graticule forms images of the graticule at infinity by reflections in each of its surfaces. The radii of the surfaces are such that the image reflected by the convex surface is coincident with that reflected by the concave surface, the element being lenticular but having a focal length so large as to be without adverse effect on the use of the instrument. A removable neutraltinted glass 7 may be provided. The graticule may be parallel with the sighting axis, a reflector being provided between it and the element 6. A system of lenses or mirrors may be used in conjunction with natural lighting to provide adequate illumination. Specifications 562,240 and 562,241 are referred to.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1242742A GB562241A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
GB1242642A GB562240A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
GB1618841A GB562233A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1618841A GB562233A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB562233A true GB562233A (en) | 1944-06-23 |
Family
ID=10072765
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1618841A Expired GB562233A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
GB1242642A Expired GB562240A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
GB1242742A Expired GB562241A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1242642A Expired GB562240A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
GB1242742A Expired GB562241A (en) | 1941-12-15 | 1941-12-15 | Optical sighting or viewing devices |
Country Status (1)
Country | Link |
---|---|
GB (3) | GB562233A (en) |
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 |
US4346995A (en) * | 1980-07-14 | 1982-08-31 | Morris Donald D | Off axis optical sight system for a firearm |
US4665622A (en) * | 1985-11-18 | 1987-05-19 | Elbit Computers, Ltd. | Optical sighting device |
EP0239700A2 (en) * | 1985-11-15 | 1987-10-07 | Pinchas Goldstein | Sighting device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8603054D0 (en) * | 1986-02-07 | 1986-03-12 | Samuelson Group Plc | Sighting arrangements |
-
1941
- 1941-12-15 GB GB1618841A patent/GB562233A/en not_active Expired
- 1941-12-15 GB GB1242642A patent/GB562240A/en not_active Expired
- 1941-12-15 GB GB1242742A patent/GB562241A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2974560A (en) * | 1957-01-30 | 1961-03-14 | Voigtiander A G | Photographic view-finder |
US4346995A (en) * | 1980-07-14 | 1982-08-31 | Morris Donald D | Off axis optical sight system for a firearm |
EP0239700A2 (en) * | 1985-11-15 | 1987-10-07 | Pinchas Goldstein | Sighting device |
EP0239700A3 (en) * | 1985-11-15 | 1988-01-13 | Pinchas Goldstein | Sighting device |
US4764011A (en) * | 1985-11-15 | 1988-08-16 | Mepro Kibbutz Hagoshrim | Sighting device for day and night use |
US4665622A (en) * | 1985-11-18 | 1987-05-19 | Elbit Computers, Ltd. | Optical sighting device |
Also Published As
Publication number | Publication date |
---|---|
GB562240A (en) | 1944-06-23 |
GB562241A (en) | 1944-06-23 |
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