Optical navigation devices
US8988391B2 · kind B2 · utility
8Cited by
1References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Dec 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging device may have an imaging surface and a sensor. The imaging surface may be illuminated by a first source and reflect at least some of the illumination to the sensor to detect an image. The imaging device may have a predetermined width and an optical path passing therethrough. The imaging device may be illuminated by a second source, and the illumination of the second source may be directed to one or more predetermined regions on or near the imaging surface to produce an optical effect associated with the imaging surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.