Optical device
US4779962A · kind A · utility
4Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device is provided which comprises a liquid layer containing a liquid-absorbable and releasable polymer that absorbs and releases a liquid under the action of an electric field and at least one pair of electrodes holding the liquid layer therebetween. The liquid may be colored, and alternatively the liquid-absorbable and releasable polymer may be colored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.