发明申请
- 专利标题： Optical writing device and image forming apparatus
- 专利标题（中）： 光写入装置和图像形成装置
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申请号： US12073312申请日： 2008-03-04
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公开(公告)号： US20080219704A1公开(公告)日： 2008-09-11
- 发明人: Kozo Yamazaki
- 申请人： Kozo Yamazaki
- 专利权人： RICOH COMPANY, LIMITED
- 当前专利权人： RICOH COMPANY, LIMITED
- 优先权： JP2007-054854 20070305
- 主分类号： G03G15/04
- IPC分类号： G03G15/04 ; H01S3/00
摘要：
An electrophotographic optical writing device equipped with a semiconductor laser includes the semiconductor laser, a collimating lens, an aperture, a cylindrical lens, and a polygon scanner. An additional aperture, a second aperture, is provided in a light path between the semiconductor laser and the collimating lens.
公开/授权文献
- US07782354B2 Optical writing device and image forming apparatus 公开/授权日：2010-08-24
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