Dust-removal optical device, a dust-removal imaging device, and method of manufacturing an optical device for removing dust
US8854505B2 · kind B2 · utility
4Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2009 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | May 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49155
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical device comprises a vibration member 20 provided on a substrate 36 transmitting light so as to vibrate said substrate, a driving circuit 29 for driving said vibration member so as to generate nodes of vibration 99 on said substrate, a plurality of electrodes 42, at least one part thereof provided at neighbor of said nodes of vibration which transmits light, and an output circuit 28 to output voltage to said plurality of electrode so as to change an electric field of a surface of said substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.