GB191501727A - Improvements in Optical Sighting Instruments. - Google Patents
Improvements in Optical Sighting Instruments.Info
- Publication number
- GB191501727A GB191501727A GB191501727DA GB191501727A GB 191501727 A GB191501727 A GB 191501727A GB 191501727D A GB191501727D A GB 191501727DA GB 191501727 A GB191501727 A GB 191501727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- junction
- eyepiece
- silvered
- optical sighting
- telescope
- 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
Landscapes
- Telescopes (AREA)
Abstract
1727. Beck, C. Feb. 3. Telescopes ; periscopes ; telescope systems. - A multiple-view sighting-telescope for use on aeroplanes &c. consists of a single eyepiece l, Fig. 1, and two or more object-glasses b, b<1>, b<11>, with which are respectively associated differently-placed reflectors d, d<1>, d<11>, Figs. 1 and 2, co-operating with a single reflector c, so that from the same point different parts of the view can be observed, such different views being combined by a compound prism e,f, g in the field of the eyepiece l, so as to be side by side for comparison. Each of the mirrors d, d<1>, d<11> is preferably adjustable. In the compound prism e, f, g shown, the junction between f and g is completely silvered, and the junction between f and e is silvered on the half towards the objectives.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191501727T | 1915-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191501727A true GB191501727A (en) | 1915-11-18 |
Family
ID=32673626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191501727D Expired GB191501727A (en) | 1915-02-03 | 1915-02-03 | Improvements in Optical Sighting Instruments. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191501727A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474602A (en) * | 1945-04-28 | 1949-06-28 | Genevoise Instr Physique | Length measuring machine having lens and reflector means |
US2512153A (en) * | 1947-05-23 | 1950-06-20 | Us Sec War | Split-field dual-power telescope |
US2527719A (en) * | 1947-11-28 | 1950-10-31 | Jesse L Greenstein | Dual power split-field antitank telescope |
US5867318A (en) * | 1995-10-11 | 1999-02-02 | Sagem Sa | Wide-angle optical system |
-
1915
- 1915-02-03 GB GB191501727D patent/GB191501727A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474602A (en) * | 1945-04-28 | 1949-06-28 | Genevoise Instr Physique | Length measuring machine having lens and reflector means |
US2512153A (en) * | 1947-05-23 | 1950-06-20 | Us Sec War | Split-field dual-power telescope |
US2527719A (en) * | 1947-11-28 | 1950-10-31 | Jesse L Greenstein | Dual power split-field antitank telescope |
US5867318A (en) * | 1995-10-11 | 1999-02-02 | Sagem Sa | Wide-angle optical system |
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