US3305629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defracting medium projection system including means to effect a uniform charge over said medium
Assignee: General Electric Co
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Filing: 1964-05-07
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Granted: 1967-02-21
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas T True
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:09
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A SYSTEM FOR CONTROLLING THE INTENSITY OF EACH POINT OF A BEAM OF LIGHT IN RESPONSE TO A RESPECTIVE POINT IN AN ELECTRICAL SIGNAL FOR PROJECTING AN IMAGE CORRESPONDING TO SAID ELECTRICAL SIGNAL COMPRISING: (A) A TRANSPARENT LIGHT DIFFRACTING MEDIUM DEFORMABLE BY ELECTRIC CHARGES DEPOSITED THEREON. (B) MEANS FOR DIRECTING SAID BEAM OF LIGHT ON SAID MEDIUM, (C) MEANS FOR DIRECTING A BEAM OF ELECTRONS UPON SAID MEDIUM TO PRODUCE SAID CHARGES IN SAID MEDIUM, (D) MEANS TO DEFLECT SAID ELECTRON BEAM OVER SAID MEDIUM IN ONE DIRECTION AT AN INTERMEDIATE FREQUENCY RATE AND IN ANOTHER DIRECTION PERPENDICULAR TO SAID ONE DIRECTION AT A LOW FREQUENCY RATE TO FORM A PATTERN OF SUCCESSIVE, SPACED LINES OF CHARGE THEREON, (E) MEANS FOR DEVELOPING A FIXED HIGH FREQUENCY WAVE OF PREDETERMINED AMPLITUDE, (F) MEANS FOR DEVELOPING ANOTHER FIXED HIGH FREQUENCY WAVE HAVING A FREQUENCY AT LEAST TWICE THE FREQUENCY OF SAID ONE WAVE, SAID OTHER WAVE BEING SMALLER IN AMPLITUDE THAN SAID ONE WAVE, (G) MEANS FOR MODULATING THE POSITION OF SAID BEAM OF ELECTRONS IN SAID OTHER DIRECTION ABOUT A LINE OF CHARGE IN RESPONSE TO SAID WAVES WHEREBY SAID ELECTRON BEAM IS CAUSED TO SPREAD SAID LINES OF ELECTRON CHARGE UNIFORMLY OVER SAID MEDIUM,
Claim 2
Independent Claim
204 words
A SYSTEM FOR CONTROLLING THE INTENSITY OF EACH POINT OF A BEAM OF LIGHT IN RESPONSE TO A RESPECTIVE POINT IN AN ELECTRICAL SIGNAL FOR PROJECTING AN IMAGE CORRESPONDING TO SAID ELECTRICAL SIGNAL COMPRISING: (A) A TRANSPARENT LIGHT DIFFRACTING MEDIUM DEFORMABLE BY ELECTRIC CHARGES DEPOSITED THEREON. (B) MEANS FOR DIRECTING SAID BEAM OF LIGHT ON SAID MEDIUM, (C) MEANS FOR DIRECTING A BEAM OF ELECTRONS UPON SAID MEDIUM TO PRODUCE SAID CHARGES IN SAID MEDIUM, (D) MEANS TO DEFLECT SAID ELECTRON BEAM OVER SAID MEDIUM IN ONE DIRECTION AT AN INTERMEDIATE FREQUENCY RATE AND IN ANOTHER DIRECTION PERPENDICULAR TO SAID ONE DIRECTION AT A LOW FREQUENCY RATE TO FORM A PATTERN OF SUCCESSIVE, SPACED LINES OF CHARGE THEREON, (E) MEANS FOR DEVELOPING A FIXED HIGH FREQUENCY WAVE OF PREDETERMINED AMPLITUDE, (F) MEANS FOR DEVELOPING ANOTHER FIXED HIGH FREQUENCY WAVE HAVING A FREQUENCY AT LEAST TWICE THE FREQUENCY OF SAID ONE WAVE, SAID OTHER WAVE BEING SMALLER IN AMPLITUDE THAN SAID ONE WAVE, (G) MEANS FOR MODULATING THE POSITION OF SAID BEAM OF ELECTRONS IN SAID OTHER DIRECTION ABOUT A LINE OF CHARGE IN RESPONSE TO SAID WAVES WHEREBY SAID ELECTRON BEAM IS CAUSED TO SPREAD SAID LINES OF ELECTRON CHARGE UNIFORMLY OVER SAID MEDIUM,
References Cited (Backward Citations)
US3209072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |