Patent US2910668A successfully refreshed from Google Patents.
US3186294A
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US
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Interferometeric goniometer
Assignee: General Precision Inc
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Filing: 1960-10-13
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Granted: 1965-06-01
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Expires: 1980-10-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Woodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
INTERFEROMETRIC APPARATUS COMPRISING, (A) FIRST MEANS FOR PRODUCING AN INCIDENT BEAM OF RADIATION; (B) SINGLE RETRODIRECTING MEANS POSITIONED NORMAL TO SAID INCIDENT BEAM OF RADIATION; (C) A ROTOR POSITIONED INTERMEDIATE SAID FIRST MEANS AND SAID RETRODIRECTING MEANS; (D) OPTICAL MEANS COOPERATING WITH SAID RETRODIRECTING MEANS FIXEDLY MOUNTED UPON SAID ROTOR, AND ROTATABLE THEREWITH, FOR SPLITTING SAID INCIDENT BEAM INTO A PLURALITY OF EMERGENT BEAMS WHOSE RELATIVE PHASE IS A FUNCTION OF THEIR WAVELENGTH AND OF THE ORIENTATION OF SAID ROTOR WITH RESPECT TO SAID INCIDENT BEAM, SAID OPTICAL MEANS FURTHER OPERABLE TO RECOMBINE THE LIGHT BEAMS REDIRECTED BY SAID RETRODIRECTING MEANS; AND (E) MEANS FOR DETECTING THE RELATIVE PHASE OF SELECTED ONES OF SAID EMERGENT BEAMS, WHEREBY SAID ORIENTATION OF SAID ROTOR WITH RESPECT TO THE DIRECTION OF SAID INCIDENT BEAM IS DETERMINED.
Claim 2
Dependent Claim
133 words
INTERFEROMETRIC APPARATUS COMPRISING, (A) FIRST MEANS FOR PRODUCING AN INCIDENT BEAM OF RADIATION; (B) SINGLE RETRODIRECTING MEANS POSITIONED NORMAL TO SAID INCIDENT BEAM OF RADIATION; (C) A ROTOR POSITIONED INTERMEDIATE SAID FIRST MEANS AND SAID RETRODIRECTING MEANS; (D) OPTICAL MEANS COOPERATING WITH SAID RETRODIRECTING MEANS FIXEDLY MOUNTED UPON SAID ROTOR, AND ROTATABLE THEREWITH, FOR SPLITTING SAID INCIDENT BEAM INTO A PLURALITY OF EMERGENT BEAMS WHOSE RELATIVE PHASE IS A FUNCTION OF THEIR WAVELENGTH AND OF THE ORIENTATION OF SAID ROTOR WITH RESPECT TO SAID INCIDENT BEAM, SAID OPTICAL MEANS FURTHER OPERABLE TO RECOMBINE THE LIGHT BEAMS REDIRECTED BY SAID RETRODIRECTING MEANS; AND (E) MEANS FOR DETECTING THE RELATIVE PHASE OF SELECTED ONES OF SAID EMERGENT BEAMS, WHEREBY SAID ORIENTATION OF SAID ROTOR WITH RESPECT TO THE DIRECTION OF SAID INCIDENT BEAM IS DETERMINED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |