Reflex-type screen, screen apparatus, and sheet-like article
US7911695B2 · kind B2 · utility
3Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/56
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a reflex-type screen which is wound up by a winding shaft to be retracted and is unwound from the winding shaft in use. The reflex-type screen comprises a reflection layer which reflects an incident light, a transparent surface protective layer provided on a first surface of the reflection layer, and a back surface protective layer provided on a second surface of the reflection layer, wherein as between the surface protective layer and the back surface protective layer, the one that has a higher loop stiffness value, faces inward when the reflex-type screen is wound up by the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.