US3126485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Input
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
APPARATUS FOR MODULATING A COHERENT MONOCHROMATIC LIGHT BEAM COMPRISING A TRANSPARENT MODULATING MEDIUM CHARACTERIZED BY FIRST, SECOND AND THIRD SUCCESSIVELY HIGHER ELECTRON ENERGY LEVELS, SAID FIRST AND THIRD LEVELS HAVING A SEPARATION CORRESPONDING TO A FREQUENCY DISTINCT FROM BUT CLOSE TO THAT OF THE LIGHT TO BE MODULATED WHEREBY THE REFRACTIVE INDEX OF SAID MEDIUM IS CHARACTERIZED BY AN EXTREME AT SUBSTANTIALLY THE FREQUENCY OF SAID LIGHT, SAID EXTREME BEING REMOVED FROM THE CENTER OF THE ABSORPTION LINE CORRESPONDING TO THE SEPARATION OF SAID FIRST AND THIRD LEVELS, SAID FIRST AND SECOND LEVELS HAVING A SEPARATION CORRESPONDING TO A FREQUENCY IN THE MICROWAVE RANGE, MEANS DEFINING A LIGHT BEAM PATH THROUGH SAID MEDIUM, AND MEANS FOR VARYING THE REFRACTIVE INDEX OF SAID MEDIUM IN ACCORDANCE WITH SIGNAL INFORMATION COMPRISING MEANS FOR APPLYING TO SAID MEDIUM MODULATED MICROWAVE ENERGY HAVING A FREQUENCY CORRESPONDING TO THE SEPARATION BETWEEN SAID FIRST AND SECOND ENERGY LEVELS.
Claim 2
Dependent Claim
152 words
APPARATUS FOR MODULATING A COHERENT MONOCHROMATIC LIGHT BEAM COMPRISING A TRANSPARENT MODULATING MEDIUM CHARACTERIZED BY FIRST, SECOND AND THIRD SUCCESSIVELY HIGHER ELECTRON ENERGY LEVELS, SAID FIRST AND THIRD LEVELS HAVING A SEPARATION CORRESPONDING TO A FREQUENCY DISTINCT FROM BUT CLOSE TO THAT OF THE LIGHT TO BE MODULATED WHEREBY THE REFRACTIVE INDEX OF SAID MEDIUM IS CHARACTERIZED BY AN EXTREME AT SUBSTANTIALLY THE FREQUENCY OF SAID LIGHT, SAID EXTREME BEING REMOVED FROM THE CENTER OF THE ABSORPTION LINE CORRESPONDING TO THE SEPARATION OF SAID FIRST AND THIRD LEVELS, SAID FIRST AND SECOND LEVELS HAVING A SEPARATION CORRESPONDING TO A FREQUENCY IN THE MICROWAVE RANGE, MEANS DEFINING A LIGHT BEAM PATH THROUGH SAID MEDIUM, AND MEANS FOR VARYING THE REFRACTIVE INDEX OF SAID MEDIUM IN ACCORDANCE WITH SIGNAL INFORMATION COMPRISING MEANS FOR APPLYING TO SAID MEDIUM MODULATED MICROWAVE ENERGY HAVING A FREQUENCY CORRESPONDING TO THE SEPARATION BETWEEN SAID FIRST AND SECOND ENERGY LEVELS.
References Cited (Backward Citations)
US2707235A
Cited
US2929922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |