GB559070A - Improvements in or relating to optical projection systems - Google Patents
Improvements in or relating to optical projection systemsInfo
- Publication number
- GB559070A GB559070A GB1211942A GB1211942A GB559070A GB 559070 A GB559070 A GB 559070A GB 1211942 A GB1211942 A GB 1211942A GB 1211942 A GB1211942 A GB 1211942A GB 559070 A GB559070 A GB 559070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- optical projection
- projection systems
- specifications
- marconi
- 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
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0884—Catadioptric systems having a pupil corrector
- G02B17/0888—Catadioptric systems having a pupil corrector the corrector having at least one aspheric surface, e.g. Schmidt plates
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
559,070. Optical systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. (Radio Corporation of America). Aug. 28, 1942, No. 12119. Drawings to Specification. [Class 97 (i)] The subject-matter of this Specification is identical with that of Specifications 627,673. Specifications 452,148, 487,241, [both in Group XL], and 537,738 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1211942A GB559070A (en) | 1942-08-28 | 1942-08-28 | Improvements in or relating to optical projection systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1211942A GB559070A (en) | 1942-08-28 | 1942-08-28 | Improvements in or relating to optical projection systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB559070A true GB559070A (en) | 1944-02-02 |
Family
ID=9998716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1211942A Expired GB559070A (en) | 1942-08-28 | 1942-08-28 | Improvements in or relating to optical projection systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB559070A (en) |
-
1942
- 1942-08-28 GB GB1211942A patent/GB559070A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB559070A (en) | Improvements in or relating to optical projection systems | |
GB548218A (en) | Improvements in or relating to aerial tuning systems | |
GB537986A (en) | Improvements in or relating to radio receivers | |
GB551364A (en) | Improvements in or relating to devices for the stereophonic transmission and reproduction of sound | |
AU116181B2 (en) | Improvements in or relating to radio receiving and transmitting systems | |
GB564816A (en) | Improvements in or relating to optical objectives | |
CA402109A (en) | Stock quotation transmitting and receiving system | |
CA403113A (en) | Telephone and telegraph exchange system | |
CA408246A (en) | Television transmitting and receiving system | |
CA415431A (en) | Radio transmission keying system | |
CA403443A (en) | Combination of lamp and radio receiver | |
AU117020B2 (en) | Atmospheric decontaminator and conditioner | |
AU117399B2 (en) | Improvements in or relating to combined lighting, and airconditioning systems | |
CA409850A (en) | Telegraph transmitting system | |
CA417470A (en) | Telegraph transmitting system | |
GB802992A (en) | Improvements in or relating to radio direction finders | |
CA415080A (en) | Telegraph keyboard perforator transmitter | |
GB642541A (en) | Improvements in or relating to telecommunication exchanges and to operators' switchboards therefor | |
AU116600B2 (en) | Improvements in or relating to radio telegraph transmitters | |
CA411833A (en) | Printing telegraph selecting and typing means | |
AU116347B2 (en) | Improvements in or relating to radio receiving and transmitting systems | |
CA403896A (en) | Printing telegraph receiver | |
CA405410A (en) | Printing telegraph receiver | |
CA405407A (en) | Printing telegraph receiver | |
CA406507A (en) | Radio communication system |