Liquid crystal dimmer plate and lighting system including the same
US5764316A · kind A · utility
18Cited by
15References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 28, 1993 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Sep 28, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system has a light source (2), a liquid crystal dimmer plate (4) for scattering a desired quantity of light from the light source (2), and a control power supply (5) for controlling a light scattering rate or effect of the liquid crystal dimmer plate (4). A light component transmitted through the liquid crystal dimmer plate (4) can be controlled by controlling the scattering effect of the dimmer plate (4). The so controlled light can be used as an illuminating light for a camera for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.