Reflective screen
US7649687B2 · kind B2 · utility
6Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Jan 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/602
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflective screen includes a light reflecting layer, and a light diffusing layer provided on the light reflecting layer. The light diffusing layer has the diffusion property that in one (A axis) of two perpendicular axial directions on a light diffusion plane, a luminance distribution curve versus incidence angle is asymmetric with respect to the zero-incidence-angle axis, and the side on which the incidence angle (half-luminance incidence angle) with half of a peak luminance on the A axis in the normal direction to the screen plane is small faces in a direction in which external light has the highest strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.