US3232165A
Expired / Lapsed
US
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Interferometer having plural slit source
Assignee: Centre National de la Recherche Scientifique
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Filing: 1962-05-29
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Granted: 1966-02-01
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 Dupuy Odette Marguerite Marie
- 👤 Marechal Robert Gaston Andre
- 👤 Michele Simone Marie Rena Lecl
- 👤 Lostis Pierre Jean Marie
- 👤 Simon Jacques Francois Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:42
CPC Classifications
G; G01; G01J; G01J9/00; G01J9/02; G01N; G01N21/00; G01N21/17; G01N21/41; G01N21/45
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN AN INTERFEROMETER, THE COMBINATION INCLUDING A SOURCE OF OPTICAL ENERGY, PERIODIC OBJECT GRID MEANS THROUGH WHICH SAID ENERGY IS PASSED, SAID RIGID MEANS HAVING A PLURALITY OF SLITS, IMAGING MEANS FOR FORMING AN IMAGE OF SAID SLITS IN AN IMAGE PLANE, AT LEAST THREE SLIT MEANS LOCATED TRANSVERSELY IN THE PATH OF SAID ENERGY TO SAID IMAGE, THE IMAGE PRODUCED IN SAID IMAGE PLANE CONTAINING A PLURALITY OF OVERLAPPING FRINGE PATTERNS, THE SPACING BETWEEN THE SLITS BEING SUCH THAT THE IMAGE IN THE IMAGE PLANE IS SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN TWO MAXIMA OF THE FRINGE PATTERNS, AND MEANS TO OBSERVE SAID FRINGE PATTERNS.
Claim 2
Dependent Claim
106 words
IN AN INTERFEROMETER, THE COMBINATION INCLUDING A SOURCE OF OPTICAL ENERGY, PERIODIC OBJECT GRID MEANS THROUGH WHICH SAID ENERGY IS PASSED, SAID RIGID MEANS HAVING A PLURALITY OF SLITS, IMAGING MEANS FOR FORMING AN IMAGE OF SAID SLITS IN AN IMAGE PLANE, AT LEAST THREE SLIT MEANS LOCATED TRANSVERSELY IN THE PATH OF SAID ENERGY TO SAID IMAGE, THE IMAGE PRODUCED IN SAID IMAGE PLANE CONTAINING A PLURALITY OF OVERLAPPING FRINGE PATTERNS, THE SPACING BETWEEN THE SLITS BEING SUCH THAT THE IMAGE IN THE IMAGE PLANE IS SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN TWO MAXIMA OF THE FRINGE PATTERNS, AND MEANS TO OBSERVE SAID FRINGE PATTERNS.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |