Scanning actuator assembly for image projection modules, especially in portable instruments
US6802451B2 · kind B2 · utility
8Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/7416
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and actuator assembly for and method of projecting an image on a viewing surface either attached to the apparatus, or on a distant surface, includes sweeping a light beam along a plurality of scan lines that extend over the viewing surface, and selectively illuminating parts of the image at selected positions of the light beam on the scan lines. The viewing surface can be selected by the user by moving a panel on the housing, thereby allowing the user either option for display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.