Optical element
US4900135A · kind A · utility
19Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1986 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1252
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An optical element comprised a pair of plates between which an optical modulation liquid layer is sandwiched, the optical modulation liquid layer exhibiting a light scattering property caused by suspension of fine particle polymer when not heated and exhibiting transparency caused by dissolution of fine particle polymer when heated, the change of such light scattering property to transparency being reversible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.