Distributed index light deflector and method of light deflection
US5596430A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1994 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Aug 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13439
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high-resistance transparent electrode is bonded on the opposite surface of a first glass substrate from a second glass substrate, and a low-resistance transparent electrode is bonded on the opposite surface of the second glass substrate from the first glass substrate. A pair of deflecting angle control electrodes are fixed to the high-resistance transparent electrode in parallel. A liquid crystal orientation film covers the high-resistance transparent electrode and the deflecting angle control electrodes, and another liquid crystal orientation film covers the low-resistance transparent electrode. Spacers are disposed in parallel between the liquid crystal orientation films, and the cell formed by the liquid crystal orientation films and spacers is filled with a nematic liquid crystal. When the voltage impressed between the low-resistance transparent electrode and the high-resistance transparent electrode and to both ends of the high-resistance transparent electrode is varied, the potential gradient varies, and the refraction index gradient varies in the same way. When light passes through a liquid crystal having such a refraction index gradient, the light is deflected depending o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.