Patent US3407309A successfully refreshed from Google Patents.
US3407309A
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Generation of second harmonic optical wave energy
Assignee: AT&T Inc
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Filing: 1963-08-01
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Granted: 1968-10-22
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/37; G02F1/353; G02F1/3534; G02F1/3544; G02F1/3548; G02F1/355; G02F1/3558
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
APPARATUS FOR GENERATING THE SECOND HARMONIC OF OPTICAL WAVE ENERGY COMPRISING MEANS SUPPLYING THE OPTICAL WAVE ENERGY, A FERROELECTRIC CRYSTAL CHARACTERIZED BY A SUCCESSION OF SUBSTANTIALLY ANTIPARALLEL DOMAINS IN THE PATH OF THE OPTICAL WAVE ENERGY, SUCH THAT THE WAVE PASSES THROUGH THE ANTIPARALLEL DOMAINS SUCCEASSIVELY, THE CRYSTAL BEING TRANSPARENT BOTH TO THE WAVE ENERGY AND TO THE SECOND HARMONIC THEREOF, AND MEANS FOR SELECTING FOR UTILIZATION FROM THE LIGHT FROM THE CRYSTAL SECOND HARMONIC WAVE ENERGY.
Claim 2
Dependent Claim
77 words
APPARATUS FOR GENERATING THE SECOND HARMONIC OF OPTICAL WAVE ENERGY COMPRISING MEANS SUPPLYING THE OPTICAL WAVE ENERGY, A FERROELECTRIC CRYSTAL CHARACTERIZED BY A SUCCESSION OF SUBSTANTIALLY ANTIPARALLEL DOMAINS IN THE PATH OF THE OPTICAL WAVE ENERGY, SUCH THAT THE WAVE PASSES THROUGH THE ANTIPARALLEL DOMAINS SUCCEASSIVELY, THE CRYSTAL BEING TRANSPARENT BOTH TO THE WAVE ENERGY AND TO THE SECOND HARMONIC THEREOF, AND MEANS FOR SELECTING FOR UTILIZATION FROM THE LIGHT FROM THE CRYSTAL SECOND HARMONIC WAVE ENERGY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |