Optical scanner, mirror chip, method of manufacturing optical scanner, and image forming apparatus
US8988750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Dec 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical scanner includes: a movable section which includes a light reflecting member with a light reflecting surface and which is rotatable around the central axis of rotation; four movable beams which extend from the movable section along the light reflecting surface and which are provided at angles of 90° along the circumferential direction of the movable section; a displacement section connected to each movable beam; two driving beams extending from the displacement section along the surface direction of the light reflecting surface so as to be perpendicular to the movable beams; a fixed section connected to each driving beam; an inner frame section formed in the displacement section; a permanent magnet fixed to the inner frame section; and a driving section which drives the displacement section. Each movable beam includes a bending section which deforms the moving beam by bending in a direction perpendicular to the light reflecting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.