Light valve containing suspension of perhalide of alkaloid acid salt
US4270841A · kind A · utility
23Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1978 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Oct 31, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A light valve comprises a cell containing a suspension of light-polarizing particles in a liquid suspending medium, the light polarizing particles being particles of a light-polarizing perhalide of a polycarboxylic acid salt of an alkaloid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.