Arrangement for and method of projecting an image with pixel mapping
US7352499B2 · kind B2 · utility
4Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2006 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Sep 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser beam is swept by a scan mirror as a pattern of scan lines on a projection surface. The scan mirror moves at a variable speed along each scan line. Each scan line has a number of pixels. The pixels have time durations proportional to the variable speed of the scan mirror. A profile memory stores the time durations of the pixels. A controller causes selected pixels arranged along each scan line to be illuminated for the time durations stored by the profile memory to produce an image of uniform brightness and of uniformly sized pixels and in color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.