发明授权
US07397590B2 Optical scanning apparatus and image forming apparatus employing this apparatus
失效
光学扫描装置和使用该装置的图像形成装置
- 专利标题: Optical scanning apparatus and image forming apparatus employing this apparatus
- 专利标题(中): 光学扫描装置和使用该装置的图像形成装置
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申请号: US11282384申请日: 2005-11-18
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公开(公告)号: US07397590B2公开(公告)日: 2008-07-08
- 发明人: Hidekazu Shimomura , Ken Tanimura , Hiroshi Sato , Tokuji Takizawa
- 申请人: Hidekazu Shimomura , Ken Tanimura , Hiroshi Sato , Tokuji Takizawa
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon U.S.A. Inc., I.P. Division
- 优先权: JP2004-364440 20041216
- 主分类号: G02B26/08
- IPC分类号: G02B26/08
摘要:
At least one exemplary embodiment is directed to an optical scanning apparatus that employs a short wave light source to constantly maintain a spot having a tiny diameter, even when an environmental temperature change occurs, by employing a lens and/or a diffractive optical element.