US3270613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored light projection system
Assignee: General Electric Co
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Filing: 1963-11-01
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Granted: 1966-09-06
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jr William E Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:26
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/80; H04N5/82; H04N5/74; H04N5/7416; H04N5/7425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN OPTICAL SYSTEM FOR PROJECTING COLORED LIGHT REPRESENTATIVE POINT-BY-POINT OF THE COLOR INFORMATION CONTAINED IN A LIGHT MODULATING MEDIUM IN THE FORM OF DEFORMATIONS WHICH DIFFRACT LIGHT CORRESPONDING TO ONE COLOR TO BE PROJECTED IN A GIVEN DIRECTION AND DIFFRACT LIGHT CORRESPONDING TO THE REMAINING COLORED LIGHT TO BE PROJECTED IN A DIRECTION NORMAL TO SAID GIVEN DIRECTION COMPRISING A FILTER COLOR MASK INTERPOSED IN THE PATH OF LIGHT CONTROLLED BY THE MEDIUM AND COMPRISING A FIRST PLURALITY OF SPACED PARALLEL FILTER STRIPS OF SAID ONE COLOR AND EXTENDING IN THE DIRECTION OF DIFFRACTION OF SAID ONE COLOR AND A PLURALITY OF SPACED FILTER STRIPS OF THE COLOR OF SAID REMAINING COLORED LIGHT AND EXTENDING IN THE DIRECTION OF DIFFRACTION OF SAID REMAINING COLORED LIGHT AND OPTICALLY OVERLYING
Claim 2
Dependent Claim
128 words
AN OPTICAL SYSTEM FOR PROJECTING COLORED LIGHT REPRESENTATIVE POINT-BY-POINT OF THE COLOR INFORMATION CONTAINED IN A LIGHT MODULATING MEDIUM IN THE FORM OF DEFORMATIONS WHICH DIFFRACT LIGHT CORRESPONDING TO ONE COLOR TO BE PROJECTED IN A GIVEN DIRECTION AND DIFFRACT LIGHT CORRESPONDING TO THE REMAINING COLORED LIGHT TO BE PROJECTED IN A DIRECTION NORMAL TO SAID GIVEN DIRECTION COMPRISING A FILTER COLOR MASK INTERPOSED IN THE PATH OF LIGHT CONTROLLED BY THE MEDIUM AND COMPRISING A FIRST PLURALITY OF SPACED PARALLEL FILTER STRIPS OF SAID ONE COLOR AND EXTENDING IN THE DIRECTION OF DIFFRACTION OF SAID ONE COLOR AND A PLURALITY OF SPACED FILTER STRIPS OF THE COLOR OF SAID REMAINING COLORED LIGHT AND EXTENDING IN THE DIRECTION OF DIFFRACTION OF SAID REMAINING COLORED LIGHT AND OPTICALLY OVERLYING
References Cited (Backward Citations)
US2813146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |