GB190815188A - Improved Means or Apparatus whereby Objects can be Sighted or Photographed from Submarine Boats or other Situations. - Google Patents
Improved Means or Apparatus whereby Objects can be Sighted or Photographed from Submarine Boats or other Situations.Info
- Publication number
- GB190815188A GB190815188A GB190815188DA GB190815188A GB 190815188 A GB190815188 A GB 190815188A GB 190815188D A GB190815188D A GB 190815188DA GB 190815188 A GB190815188 A GB 190815188A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sighted
- objects
- photographed
- situations
- improved means
- 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
15,188. Improved Periscope, Ltd., and Aldis, A. C. W. July 17. Periscopes; surveying- instruments. - In apparatus used in submarines &c., or for photographic surveying, the lens mirror is hyperboloidal or the equivalent, the refracting-surfaces being spherical &c. In the mirror shown in Fig. 2, the surfaces A C, B C are circular in section and the section A B of the toric reflecting-surface is also circular, being part of the circle of closest contact to the corresponding hyperbola. A pair of objective lenses h, i with an interposed objective are used in the periscope tube. Interchangeable high and low power eyepieces are provided, and by the use of a suitable scale the positions of objects sighted can be approximately ascertained.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190815188T | 1908-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190815188A true GB190815188A (en) | 1909-06-10 |
Family
ID=32636349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190815188D Expired GB190815188A (en) | 1908-07-17 | 1908-07-17 | Improved Means or Apparatus whereby Objects can be Sighted or Photographed from Submarine Boats or other Situations. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190815188A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638033A (en) * | 1950-12-19 | 1953-05-12 | Buchele Donald Robert | Unitary catadioptric objective lens system |
US2959089A (en) * | 1955-03-16 | 1960-11-08 | American Cystoscope Makers Inc | Panoramic borescope |
US2964997A (en) * | 1956-06-29 | 1960-12-20 | Tno | Horizon camera objective lens system |
US3068752A (en) * | 1956-12-24 | 1962-12-18 | Commw Of Australia | Wide angle lens systems |
US5033833A (en) * | 1990-02-26 | 1991-07-23 | Martin Marietta Corporation | Omni-directional optical antenna element |
EP1564574A1 (en) * | 2001-02-09 | 2005-08-17 | Sharp Kabushiki Kaisha | Imaging device and method for producing the same |
-
1908
- 1908-07-17 GB GB190815188D patent/GB190815188A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2638033A (en) * | 1950-12-19 | 1953-05-12 | Buchele Donald Robert | Unitary catadioptric objective lens system |
US2959089A (en) * | 1955-03-16 | 1960-11-08 | American Cystoscope Makers Inc | Panoramic borescope |
US2964997A (en) * | 1956-06-29 | 1960-12-20 | Tno | Horizon camera objective lens system |
US3068752A (en) * | 1956-12-24 | 1962-12-18 | Commw Of Australia | Wide angle lens systems |
US5033833A (en) * | 1990-02-26 | 1991-07-23 | Martin Marietta Corporation | Omni-directional optical antenna element |
EP1564574A1 (en) * | 2001-02-09 | 2005-08-17 | Sharp Kabushiki Kaisha | Imaging device and method for producing the same |
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