GB624983A - Improvements in or relating to television systems and methods of televising an object in colour - Google Patents
Improvements in or relating to television systems and methods of televising an object in colourInfo
- Publication number
- GB624983A GB624983A GB19448/47A GB1944847A GB624983A GB 624983 A GB624983 A GB 624983A GB 19448/47 A GB19448/47 A GB 19448/47A GB 1944847 A GB1944847 A GB 1944847A GB 624983 A GB624983 A GB 624983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- images
- colour
- lens
- mirrors
- systems
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
624,983. Optical projection systems. SLEEPER, G. E. July 21, 1947, Nos. 19448 and 19449. Convention dates, Feb. 5, 1943, and Aug. 30, 1943. [Class 97 (i)] [Also in Group XL (b)] A quadchromatic lens system used in colour television systems (see Group XL (b)) comprises a lens 40 (Fig. 3) which forms an image of an object 10 on four prisms 41, 42, 43, 44 adjusted relative to lens 40 and to each other so as to produce four images of the object. Associated with each prism are colour filters 45, 46, 47, 48. A second lens 49 projects the four colour images 12, 13, 14, 15 on to a screen 16. In a modification, Fig. 4, mirrors are substituted for the prisms and four images of the object 10 are reflected by the mirrors 50, 51, 52, 53 on to mirrors 54, 55, 56, 57 which reflect the separate images through colour filters 45, 46, 47, 48 to the lens 49 and thence on to the screen 16. Both systems may be used in reverse to form one composite coloured image from four separate monochromatic images.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US474787A US2389645A (en) | 1943-02-05 | 1943-02-05 | Television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB624983A true GB624983A (en) | 1949-06-20 |
Family
ID=23884928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19448/47A Expired GB624983A (en) | 1943-02-05 | 1947-07-21 | Improvements in or relating to television systems and methods of televising an object in colour |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2389645A (en) |
| FR (1) | FR920137A (en) |
| GB (1) | GB624983A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2521010A (en) * | 1945-12-29 | 1950-09-05 | John H Homrighous | Television system |
| DE838169C (en) * | 1946-02-09 | 1952-03-27 | Compagnie Generale de Telegraphie sans FiI, Paris | Vacuum tube with a beam of particles (electrons) to excite a luminous phenomenon |
| US2489299A (en) * | 1946-04-15 | 1949-11-29 | Farnsworth Res Corp | Color television projector |
| US2465652A (en) * | 1946-06-25 | 1949-03-29 | Harry E Legler | Color television |
| US2515862A (en) * | 1947-10-25 | 1950-07-18 | Saul Jeffee | Optical device |
| BE499740A (en) * | 1949-12-01 | |||
| US2660612A (en) * | 1949-12-14 | 1953-11-24 | Jr Frank M Wood | Color television receiving system |
| US2764148A (en) * | 1950-07-11 | 1956-09-25 | Sheldon Edward Emannel | Endoscope means for the internal examination of the human body |
| GB2203611B (en) * | 1987-03-06 | 1991-01-02 | Rank Cintel Ltd | Improvements to telecine equipment |
| KR100252157B1 (en) * | 1997-08-30 | 2000-04-15 | 윤종용 | Projection television |
-
1943
- 1943-02-05 US US474787A patent/US2389645A/en not_active Expired - Lifetime
-
1945
- 1945-11-06 FR FR920137D patent/FR920137A/en not_active Expired
-
1947
- 1947-07-21 GB GB19448/47A patent/GB624983A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2389645A (en) | 1945-11-27 |
| FR920137A (en) | 1947-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB983933A (en) | Improvements in or relating to television cameras | |
| GB1286787A (en) | Beam-splitting prism system | |
| GB1470756A (en) | Prism | |
| GB624983A (en) | Improvements in or relating to television systems and methods of televising an object in colour | |
| GB891348A (en) | Improvements in and relating to optical comparators | |
| GB342036A (en) | ||
| GB605485A (en) | Improvements in or relating to range finders | |
| GB638372A (en) | Trichromatic selective optical device | |
| GB459171A (en) | Improvements in or relating to light-polarising devices | |
| GB441907A (en) | Colour cinematography | |
| GB346679A (en) | Improvements in or relating to stereoscopic photography | |
| GB257549A (en) | Improvements in optical devices for photographic, kinematographic and other purposes | |
| GB1186286A (en) | Autocollimator for Measuring the Relative Position of Two Reflections. | |
| GB555167A (en) | Colour television apparatus | |
| GB282078A (en) | Improvements relating to optical systems for use in photography | |
| GB257548A (en) | Improvements in optical devices for photographic, kinematographic and other purposes | |
| GB258755A (en) | Improvements in and relating to periscopes | |
| GB573601A (en) | Improvements in optical projection apparatus | |
| GB352773A (en) | Improvements in or relating to means for effecting stereoscopic photography and the like | |
| GB509269A (en) | Improvements in and relating to apparatus for colour photography | |
| GB528588A (en) | Apparatus for colour photography | |
| GB1039513A (en) | Improvements relating to beam splitting optical systems, especially for colour television cameras | |
| GB473303A (en) | Improvements in or relating to colour television and the like | |
| GB922923A (en) | Colour projectors and cameras | |
| GB257547A (en) | Improvements in optical devices for photographic, kinematographic and other purposes |