Portable front projection screens
US7595930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Dec 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Portable front projection screens include: (a) a first panel having opposing primary outer and inner surfaces, the first panel having at least first and second portions that are foldable relative to each other so as to be oriented at an angle relative to each other in an open configuration and closed to a coplanar flat configuration; and (b) a second panel foldably attached to the first panel and having opposing outer and inner primary surfaces. The second panel inner surface comprises a high gain, high Ambient Rejection Ratio projection screen that extends over a major portion of the inner surface. In a closed configuration, the first and second panels reside adjacent and substantially parallel to each other. The first and second panels cooperate to open to a user viewing configuration whereby the second panel is substantially vertical with the projection screen oriented to face forward toward a user and the second portion of the first panel defines a substantially horizontal base with the first portion of the first panel angled upwardly and inwardly from the horizontal base toward the substantially vertical second panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.