Patent US3217591A successfully refreshed from Google Patents.
US3217591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angled plate scanning interferometer
Assignee: Individual
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Filing: 1962-03-19
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Granted: 1965-11-16
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 William L Barr
- 👤 Andrew L Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/26; G01J3/02; G01J3/0205; G01J3/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN AN INTERFEROMETER FOR CONTINUOUSLY RECORDING THE LIGHT INTENSITY PROFILE OF SPECTRAL LINES, THE COMBINATION COMPRISING AN INTERFEROMETER HOUSING, A COLLIMATING LENS MOUNTED IN AN APERTURE IN SAID HOUSING, A FIRST DIAPHRAGM MOUNTED WITHIN SAID HOUSING IN LIGHT RECEIVING RELATION TO SAID LENS, A TRANSPARENT PRISM PARALLEL BEAM DISPLACER ROTATABLY MOUNTED WITHIN SAID HOUSING IN LIGHT RECEIVING RELATION TO SAID DIAPHRAGM, LIGHT FILTER MEANS INTERPOSED BETWEEN SAID DIAPHRAGM AND SAID DISPLACER, A PAIR OF INTERFEROMETER PLATES ANGLED ONE WITH RESPECT TO THE OTHER TO PROVIDE PATH LENGTH VARIATIONS BETWEEN FACING SURFACES THEREOF MOUNED CENTRALLY WITHIN SAID OUSING AND DISPOSED TO RECEIVE LIGHT FROM SAID DISPLACER, A LIGHT CONVERGING LENS MOUNTED IN OPTICAL ALIGNMENT WITH SAID PLATES TO RECEIVE LIGHT THEREFROM AND BRING THE RAYS THEREOF TOGETHER FOR INTERFERENCE, A SECOND DIAPHRAGM POSITIONED TO TRANSMIT A SELECTED PORTION OF INTERFERENCE LIGHT PASSING THROUGH SAID CONVERGING LENS, A PHOTOMULTIPLIER MOUNTED IN SID HOUSING TO VIEW THE LIGHT INTENSITY OF SAID LIGHT TRANSMITTED THROUGH SAID SECOND DIAPHRAGM, AND MEANS CONNECTED TO SAID PHOTOMULTIPLIER FOR DIRECTLY RECORDING THE LIGHT INTENSITY.
Claim 2
Dependent Claim
176 words
IN AN INTERFEROMETER FOR CONTINUOUSLY RECORDING THE LIGHT INTENSITY PROFILE OF SPECTRAL LINES, THE COMBINATION COMPRISING AN INTERFEROMETER HOUSING, A COLLIMATING LENS MOUNTED IN AN APERTURE IN SAID HOUSING, A FIRST DIAPHRAGM MOUNTED WITHIN SAID HOUSING IN LIGHT RECEIVING RELATION TO SAID LENS, A TRANSPARENT PRISM PARALLEL BEAM DISPLACER ROTATABLY MOUNTED WITHIN SAID HOUSING IN LIGHT RECEIVING RELATION TO SAID DIAPHRAGM, LIGHT FILTER MEANS INTERPOSED BETWEEN SAID DIAPHRAGM AND SAID DISPLACER, A PAIR OF INTERFEROMETER PLATES ANGLED ONE WITH RESPECT TO THE OTHER TO PROVIDE PATH LENGTH VARIATIONS BETWEEN FACING SURFACES THEREOF MOUNED CENTRALLY WITHIN SAID OUSING AND DISPOSED TO RECEIVE LIGHT FROM SAID DISPLACER, A LIGHT CONVERGING LENS MOUNTED IN OPTICAL ALIGNMENT WITH SAID PLATES TO RECEIVE LIGHT THEREFROM AND BRING THE RAYS THEREOF TOGETHER FOR INTERFERENCE, A SECOND DIAPHRAGM POSITIONED TO TRANSMIT A SELECTED PORTION OF INTERFERENCE LIGHT PASSING THROUGH SAID CONVERGING LENS, A PHOTOMULTIPLIER MOUNTED IN SID HOUSING TO VIEW THE LIGHT INTENSITY OF SAID LIGHT TRANSMITTED THROUGH SAID SECOND DIAPHRAGM, AND MEANS CONNECTED TO SAID PHOTOMULTIPLIER FOR DIRECTLY RECORDING THE LIGHT INTENSITY.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |