US3086076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color index tube projection system
Assignee: HARRIES ELECTRONICS CORP Ltd
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Filing: 1959-05-19
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Granted: 1963-04-16
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Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 Harries John Henry Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:21
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
COLOUR TELEVISION DISPLAY APPARATUS COMPRISING AN ELECTRON BEAM TUBE HAVING A PHOSPHOR SCREEN CONSISTING OF A PLURALITY OF ELEMENTAL AREA CONSTITUTING DIFFERENT SETS OF AREAS COATED RESPECTIVELY WITH PHOSPHORS ADAPTED TO RADIATE AT DIFFERENT WAVELENGTHS, SAID PHOSPHORS HAVING LIGHT-DIFFUSING SURFACES WHICH DIFFUSE LIGHT REFLECTED THEREFROM, AND AN OPTICAL PROJECTION SYSTEM LOCATED WITHIN SAID TUBE AND ADAPTED TO PROJECT TO THE OUTSIDE OF SAID TUBE A MAGNIFIED IMAGE OF THE DISPLAY ON SAID PHOSPHOR SCREEN, SAID TUBE HAVING FORMED IN ITS WALLS A HOUSING FOR A RADIATION-SENSITIVE DEVICE HAVING A LIMITED RANGE OF SPECTRAL RESPONSE, SAID HOUSING BEING SO ARRANGED THAT A RADIATIONSENSITIVE DEVICE PLACED THEREIN IS EXPOSED TO RADIATION FROM SAID PHOSPHOR SCREEN AND IS SHIELDED AGAINST AMBIENT LIGHT EXCEPT BY REFLECTION FROM SAID DIFFUSING SURFACES OF SAID PHOSPHORS.
Claim 2
Dependent Claim
129 words
COLOUR TELEVISION DISPLAY APPARATUS COMPRISING AN ELECTRON BEAM TUBE HAVING A PHOSPHOR SCREEN CONSISTING OF A PLURALITY OF ELEMENTAL AREA CONSTITUTING DIFFERENT SETS OF AREAS COATED RESPECTIVELY WITH PHOSPHORS ADAPTED TO RADIATE AT DIFFERENT WAVELENGTHS, SAID PHOSPHORS HAVING LIGHT-DIFFUSING SURFACES WHICH DIFFUSE LIGHT REFLECTED THEREFROM, AND AN OPTICAL PROJECTION SYSTEM LOCATED WITHIN SAID TUBE AND ADAPTED TO PROJECT TO THE OUTSIDE OF SAID TUBE A MAGNIFIED IMAGE OF THE DISPLAY ON SAID PHOSPHOR SCREEN, SAID TUBE HAVING FORMED IN ITS WALLS A HOUSING FOR A RADIATION-SENSITIVE DEVICE HAVING A LIMITED RANGE OF SPECTRAL RESPONSE, SAID HOUSING BEING SO ARRANGED THAT A RADIATIONSENSITIVE DEVICE PLACED THEREIN IS EXPOSED TO RADIATION FROM SAID PHOSPHOR SCREEN AND IS SHIELDED AGAINST AMBIENT LIGHT EXCEPT BY REFLECTION FROM SAID DIFFUSING SURFACES OF SAID PHOSPHORS.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |