Optical navigation devices and associated methods
US8537263B2 · kind B2 · utility
1Cited by
3References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2010 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The imaging device has an imaging surface and a sensor, wherein the imaging surface is illuminated and reflects at least some of the illumination to the sensor to detect an image. The imaging device has a width and an optical path passing therethrough, wherein the optical path exhibits distortion as a result of the width of the device and the nature of the optical path. The imaging device includes an optical element which in use compensates for the distortion by generating a magnification profile across a tangential plane of the device at the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.