Rear projection screen, optical component thereof, and method for manufacturing the optical component
US6862139B2 · kind B2 · utility
19Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A rear projection screen includes a first and second optical components. The second optical component includes a first surface on which a plurality of cylindrical convex portions are formed, and a second surface opposite to the first surface. In this case, a plurality of concave portions are formed on the second surface, and each concave portion is positioned respectively corresponding to the place between each cylindrical convex portion. A light absorbing material is applied to each concave portion. Furthermore, the invention also discloses an optical component and a method for manufacturing the optical component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.