Optical device
US4685766A · kind A · utility
21Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1984 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3576
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device comprises an optical waveguide constituted of as a basic unit a core layer of a material having a relatively high refractive index and a clad layer of a material having a relatively low refractive index and covering said core layer, and heating means for heating said core layer to change the refractive index thereof, characterized in that when said core layer is constituted of a liquid, said core layer is heated by said heating means to a temperature such that said core layer does not boil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.