Ellipsoidal optical coupling device
US4422714A · kind A · utility
36Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1981 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | Mar 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/903
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical coupling device wherein at least two light conductors are coupled through the intermediary of a transparent block in the shape of a half-ellipsoid on whose foci converge the end sections of the two light conductors. A light beam emerging from one conductor is reflected and transforms itself into a beam converging on the end of the second conductor. A slot permits the introduction of a liquid-crystal attenuating device connected to an alternating voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.