High-resolution image projection
US7446822B2 · kind B2 · utility
8Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jan 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S370/907
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in monochrome, color or gray scale. Pixel size is controlled as a function of distance of the image from the module to control image resolution and allow the image to remain sharp and clear over an extended range of distances from the module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.