Optical path deflecting element, optical path deflecting apparatus, image displaying apparatus, optical element and manufacturing method thereof
US6919982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13781
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical path deflecting element, an optical path deflecting apparatus, an image displaying apparatus, an optical writing apparatus, an optical interconnection apparatus, an optical element, and a fabrication method thereof. The optical path deflecting element includes a pair of transparent substrates, transparent electrode films on the substrates to which a voltage having an inverse polarity is selectively applied, an alignment layer in the inner sides of the substrates, and a liquid crystal layer formed of a chiral smectic C phase between the substrates via the alignment layer and homogeneously aligned by the alignment layer. The optical deflecting element can realize the uniformly-aligned liquid crystal layer more easily than a case in which the liquid crystal is aligned to become in a bistable condition. For this reason, it is possible to improve yield in the fabrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.