Optical element and device using same
US4952035A · kind A · utility
14Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1986 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Mar 20, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element comprises a gel layer exhibiting a light scattering property when heated and exhibiting transparency when cooled, and the gel layer is sandwiched between a transparent substrate and a transparent protective plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.