Video display system with an oscillating projector screen
US7740359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Dec 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B25/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for displaying images from a video projector. The apparatus includes a virtual projector screen assembly with an elongate screen element, such as a rod, that is mounted at one end to a base. The base is adapted for pivoting about its axis, arid a driver mechanism pivots the, base at high frequencies. During operation, the screen element oscillates between two edge positions with images projected from the projector being displayed on a side of the screen element facing or proximate to the projector. The two edge positions can be thought of as intersecting at the base and define a sweep angle (e.g., the angular difference between the two outer travel points of the screen element that is typically less than about 90 degrees). The driver may include a motor with an oscillating output shaft that pivots the base such as with a belt attached to the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.