- 专利标题： Optical deflecting unit, optical scanning unit, image forming apparatus, and method of producing optical unit
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申请号： US10085707申请日： 2002-03-01
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公开(公告)号： US06657765B2公开(公告)日： 2003-12-02
- 发明人: Yoshinori Hayashi , Eiji Mochizuki , Tomohiro Nakajima
- 申请人： Yoshinori Hayashi , Eiji Mochizuki , Tomohiro Nakajima
- 优先权： JP2001-056407 20010301; JP2001-073032 20010314; JP2001-073033 20010314; JP2001-073034 20010314; JP2001-078152 20010319
- 主分类号： G02B2608
- IPC分类号： G02B2608
摘要：
An optical deflecting unit includes a torsion mirror which is pivotable about an axis and has a deflecting reflection surface which receives a light beam at an incident angle inclined with respect to a plane which is perpendicular to the axis and the deflecting reflection surface, and at least one fixed mirror surface confronting the torsion mirror and arranged so that the light beam is reflected between the torsion mirror and the at least one fixed mirror surface a plurality of times. A moving direction of a reflection position of the light beam on the torsion mirror in a sub scan direction reverses.
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