Optical unit and electrolytic solution
US5864420A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Mar 3, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1506
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide an optical unit which can be driven with low electrical power, is controllable in its transmittance in visible light, has satisfactory spectroscopic properties in a light-screening state, and exhibits a life span extended by reducing the over-voltage upon the electrodes; and to provide an electrolytic solution to be used in the optical unit. An optical unit comprising a pair of opposing electrodes 2 and 3, and an electrolytic solution 1 comprising a solvent and a silver bromide dissolved therein, the electrolytic solution further containing a metal salt such as copper bromide to be co-deposited with silver, and the electrolytic solution being disposed between the opposing electrodes such that deposition/dissolution of silver is caused by drive-controlling these electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.