Optical scanning device and image forming apparatus using the same
US8054327B2 · kind B2 · utility
3Cited by
17References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.