Method and apparatus for optical dithering
US7791765B1 · kind B1 · utility
1Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2004 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for optical dithering and a dither device comprising a mounting structure, a refractive optic, an optic mounting structure surrounding the optic, and one or more linear drive motors. Four linear coils are preferably employed together with a control system operating in open loop mode. The dither device and method provides double resolution to a detector receiving output therefrom. The invention can operate in a single axis or in two axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.