Projection-receiving surface
US8294992B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Aug 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention presents a projection-receiving surface that has a surface having an undulating contour. The undulating contour comprises a plurality of alternating convex cylindrical surface segments and concave cylindrical surface segments. The convex cylindrical surface segments and concave cylindrical surface segments of the undulating contour of the surface arranged with cylindrical axes in a direction. The surface can further have an additional surface feature comprising striations, cusps, and/or nanoflaked reflector leaves. The striations are arranged crosswise to the undulating contour. The surface can be a reflection surface of a front projection-receiving surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.