Reflection screen and method for producing the same
US6040941A · kind A · utility
18Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reflection screen includes a light-reflecting substrate laminated with a light-transmitting polymer layer having light absorptive crazes of regular directionality. The reflection screen is formed by coating or laminating the light-reflecting layer on the substrate, drawing over a blade in a direction perpendicular to the blade to form the crazes and inserting a light-absorbing material into the crazes. Images projected on the reflection screen have high contrast and can be observed as sharp images even in a lighted area such as in a room lighted by fluorescent lighting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.