发明申请
- 专利标题： Illumination optical system, illumination apparatus using the illumination optical system, and observation system provided with the illumination optical system or the illumination apparatus
- 专利标题（中）： 照明光学系统，使用该照明光学系统的照明装置，以及设置有照明光学系统或照明装置的观察系统
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申请号： US11181816申请日： 2005-07-15
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公开(公告)号： US20060018031A1公开(公告)日： 2006-01-26
- 发明人: Yoshiharu Takasugi
- 申请人： Yoshiharu Takasugi
- 优先权： JP2004-216035 20040723
- 主分类号： G02B21/02
- IPC分类号： G02B21/02
摘要：
An illumination optical system disposed in order to diffuse illumination light emitted from a light source, includes at least one optical device having a roughened optical surface, with the arithmetic average roughness of the roughened surface set in a range of 0.05 to 0.75 [μm].
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