Projector pen
US9001028B2 · kind B2 · utility
16Cited by
3References
23Claims
0Family size
Inventor
Key dates
| Filing date | Aug 19, 2006 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Aug 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3179
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A small device for projecting images from a video generating device such as a computer, television receiver, or similar device onto a screen or other surface is described in this invention. The device is the size of the pen, and converts video instructions using a processing unit and memory into light signals that are projected. In the one embodiment, the device uses pulsed laser light from red, green, and blue lasers that are combined into a single light pulse that is transmitted through a rotating disk containing numerous lenses that transmit each light pulse to a specific location on the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.