Optical device and method for making the same
US7532284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3016
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for making an optical device includes the steps of: rubbing an orienting film so as to stretch the molecular structure thereof and so as to permit the molecular units of the molecular structure to be aligned along a first axis and to permit the orienting space between each adjacent pair of the molecular units of the molecular structure to be oriented in a direction parallel to a second axis; and forming an optical anisotropical layer on the orienting film by applying a liquid crystal film of rod-like molecules on the orienting film which orients the rod-like molecules by virtue of spatial effect of the molecular units and the orienting spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.