Optical navigation device
US9170684B2 · kind B2 · utility
0Cited by
4References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2011 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Feb 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical navigation device may include an image sensor with an imaging surface, a laser, and an optical waveguide layer having an exposed user surface and a total internal reflection (TIR) surface on the underside of the exposed user surface. The waveguide layer, the laser, and the image sensor may be together arranged to direct radiation emitted by the laser onto the imaging surface at least partly by total internal reflection by the TIR surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.