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Patent US3208342A successfully refreshed from Google Patents.
US3208342A
Expired / Lapsed
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Electro-optic light coupling of optical fibers
Assignee: International Business Machines Corp
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Filing: 1962-09-18
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Granted: 1965-09-28
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Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur H Nethercot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29; G02F1/31; G02F1/313; G02F1/3131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
APPARATUS FOR CONTROLLABLY COUPLING LIGHT FROM ONE CONDUCTOR TO ANOTHER, COMPRISING: (A) A FIRST AND SECOND LIGHT CONDUCTOR POSITIONED IN CLOSE PROXIMITY TO, BUT SPACED FROM ONE ANOTHER OVER RESPECTIVE PORTIONS OF THEIR LENGTHS; (B) MEANS FOR INTRODUCING LIGHT INTO THE FIRST CONDUCTOR; (C) A TRANSLUCENT COUPLING MEDIUM POSITIONED BETWEEN SAID CONDUCTORS IN INTIMATE CONTACT THEREWITH, SAID COUPLING MEDIUM HAVING A LOWER INDEX OF REFRACTION THAN THAT OF EITHER OF SAID CONDUCTORS; (D) AND MEANS FOR CONTROLLABLY VARYING THE INDEX OF REFRACTION OF SAID COUPLING MEDIUM RELATIVE TO THAT OF THE LIGHT CONDUCTORS, WHEREBY THE QUANTITY OF LIGHT TRANSFERRED FROM SAID FIRST CONDUCTOR TO SAID SECOND CONDUCTOR WILL VARY IN ACCORDANCE WITH THE CHANGES IN THE RELATIVITY OF THE RESPECTIVE INDICES OF REFRACTION.
Claim 2
Dependent Claim
123 words
APPARATUS FOR CONTROLLABLY COUPLING LIGHT FROM ONE CONDUCTOR TO ANOTHER, COMPRISING: (A) A FIRST AND SECOND LIGHT CONDUCTOR POSITIONED IN CLOSE PROXIMITY TO, BUT SPACED FROM ONE ANOTHER OVER RESPECTIVE PORTIONS OF THEIR LENGTHS; (B) MEANS FOR INTRODUCING LIGHT INTO THE FIRST CONDUCTOR; (C) A TRANSLUCENT COUPLING MEDIUM POSITIONED BETWEEN SAID CONDUCTORS IN INTIMATE CONTACT THEREWITH, SAID COUPLING MEDIUM HAVING A LOWER INDEX OF REFRACTION THAN THAT OF EITHER OF SAID CONDUCTORS; (D) AND MEANS FOR CONTROLLABLY VARYING THE INDEX OF REFRACTION OF SAID COUPLING MEDIUM RELATIVE TO THAT OF THE LIGHT CONDUCTORS, WHEREBY THE QUANTITY OF LIGHT TRANSFERRED FROM SAID FIRST CONDUCTOR TO SAID SECOND CONDUCTOR WILL VARY IN ACCORDANCE WITH THE CHANGES IN THE RELATIVITY OF THE RESPECTIVE INDICES OF REFRACTION.
References Cited (Backward Citations)
US3099805A
Cited
US3051003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |