Projection screen using variable power lenticular lens for asymmetric viewing angle
US6624934B1 · kind B1 · utility
12Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1999 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jun 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Rear projection screens use lenticular lens films as light dispersing components. A single lenticular lens film includes lenticular lenses having different focal powers, or includes lenticular lenses formed in two dimensional patterns. The lenticular lens films improve the brightness uniformity over the entire screen as viewed by a viewer who is located at a specific position. The specific position is typically selected to be the most probable location of the viewer for the particular application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.