Electrically controlled optical switching device
US4789228A · kind A · utility
24Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Jan 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/357
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention concerns a device where the commutation of a luminous beam is ensured by the electrically controlled presence or absence, on the path of the beam, of a fluid causing said beam to be transmitted or reflected. The invention provides for improved decoupling between the output channels of the device, due to the presence of a surface provoking a total internal reflection that allows one to eliminate interference reflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.