Biaxial scanning mirror for image forming apparatus
US8456724B2 · kind B2 · utility
6Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2010 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | May 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A biaxial scanning mirror for an image forming apparatus includes a first wafer, a second wafer, and a spacer. The first wafer includes a mirror unit, a rectangular rotating unit, a permanent magnet, and a magnetically permeable layer. The second wafer has at least two cores each surrounded by a planar coil applied with an AC current for switching magnetic polarization of the cores such that the cores are attracted to or repelled from the rotating unit alternatively, thereby driving the rotating unit to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.