Optical deflection device
US6297898A · kind A · utility
9Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/1821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical deflection device for deflecting light by a mirror mounted on the tip of a rod-like torsion spring which oscillates at near resonance frequency. An optical deflection device which produces a large amplitude by exerting control to avoid variation in the natural oscillation frequency of the torsion spring (including mirror) regardless of temperature fluctuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.