发明授权
US6101019A Optical scanner using multiple half mirrors to combine multiple optical
beams
失效
使用多个半反射镜组合多个光束的光学扫描仪
- 专利标题： Optical scanner using multiple half mirrors to combine multiple optical beams
- 专利标题（中）： 使用多个半反射镜组合多个光束的光学扫描仪
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申请号： US208000申请日： 1998-12-09
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公开(公告)号： US6101019A公开(公告)日： 2000-08-08
- 发明人: Hiroyuki Kunugi
- 申请人： Hiroyuki Kunugi
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX10-9010669 19980122
- 主分类号： B41J2/44
- IPC分类号： B41J2/44 ; B41J2/47 ; G02B26/10 ; G02B26/12 ; G02B27/14 ; H01S3/101 ; G02B26/08
摘要：
The multi-beam optical unit of the invention limits the number of reflection times by half mirrors to one time or below when a plurality of beams are combined into one and guided to a polygon mirror, so that an influence upon an image due to a positioning error of the half mirrors can be minimized. Besides, power of emitted beams can be made uniform by using the half mirrors having transmissivity and reflectance satisfying predetermined conditions regardless of the number of times that the beams penetrate the half mirrors. Thus, the service lives of a plurality of beam emitting sources can be made uniform, and maintainability can be improved.
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