US3770887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color stereo television
Assignee: United States Department of the Navy
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Filing: 1972-01-31
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Granted: 1973-11-06
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Expires: 1992-01-31
Abstract
Abstract A system of coded discs and mirrors is used with a black and white television system to obtain a colored stereo television picture. No prisms and only one cathode ray tube are used.
Inventors
- 👤 Buskirk L Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:56
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/14; G02B27/147; G02B26/00; G02B26/08; G02B26/0816; H; H04; H04N; H04N13/00; H04N13/30; H04N13/332; H04N13/339
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
252 words
A color stereo television system comprising: a. means for sequentially directing light images from a left eye path and a right eye path to a black and white television camera, said means comprising a plurality of lenses and mirrors which direct the images from the two said paths to a first rotating color coded disc which, in turn, sequentially directs them to the camera; b. means for sequentially transmitting video signals produced by the television camera in response to the light images to a single cathode ray tube which converts said video signals back into light images and sequentially transmits them to a transfer lens mounted in front of it; c. means comprising a second rotating color coded disc and mirrors for receiving the light images from said transfer lens and sequentially directing them, in the proper order, to a pair of left and right eye oculars for viewing; d. means for causing said first color coded disc and said second color coded disc to rotate in a synchronization which causes said left eye ocular to receive the light images arising from said left eye path and the right eye ocular to receive the light images arising from said right eye path; and e. the distance between said left eye path and said right eye path can be widened by removing two mirrors from the system and the light images received by the camera from said paths is caused to be magnified by a pair of 4X magnification lenses in said paths.
Claim 2
Dependent Claim
252 words
A color stereo television system comprising: a. means for sequentially directing light images from a left eye path and a right eye path to a black and white television camera, said means comprising a plurality of lenses and mirrors which direct the images from the two said paths to a first rotating color coded disc which, in turn, sequentially directs them to the camera; b. means for sequentially transmitting video signals produced by the television camera in response to the light images to a single cathode ray tube which converts said video signals back into light images and sequentially transmits them to a transfer lens mounted in front of it; c. means comprising a second rotating color coded disc and mirrors for receiving the light images from said transfer lens and sequentially directing them, in the proper order, to a pair of left and right eye oculars for viewing; d. means for causing said first color coded disc and said second color coded disc to rotate in a synchronization which causes said left eye ocular to receive the light images arising from said left eye path and the right eye ocular to receive the light images arising from said right eye path; and e. the distance between said left eye path and said right eye path can be widened by removing two mirrors from the system and the light images received by the camera from said paths is caused to be magnified by a pair of 4X magnification lenses in said paths.
Claim 3
Dependent Claim
31 words
A color stereo television system according to claim 1 wherein said first rotating color coded disc and said second rotating color coded disc are rotated at a speed of 600 rpm.
Claim 4
Dependent Claim
37 words
A color stereo television system according to claim 1 wherein said color coded discs are constructed to be one half light transmitting and one half light reflecting with each half being divided equally into three different colors.
Claim 5
Dependent Claim
40 words
A color stereo television system according to claim 3 wherein said half light transmitting and half light reflecting color coded disc is constructed so that light must pass through equal thicknesses of coloring material whether it is transmitted or reflected.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |