Optical panel having black material between apexes of serrations on the inlet face
US6597417B1 · kind B1 · utility
9Cited by
13References
49Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2000 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Dec 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical panel includes a transparent serrated first side, and an opposite second side, and a black material provided on the serrated first side for intermittently blocking or absorbing light transmission. Image light may be transmitted through the panel at the serrations, with contrast provided by the black material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.