发明授权
- 专利标题： Antireflection structure and optical device including the same
- 专利标题（中）： 防反射结构和包括其的光学装置
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申请号： US11798534申请日： 2007-05-15
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公开(公告)号： US08023190B2公开(公告)日： 2011-09-20
- 发明人: Kazuhiro Yamada , Takamasa Tamura , Motonobu Yoshikawa , Hiroshi Yamaguchi , Kazuhiko Ishimaru
- 申请人： Kazuhiro Yamada , Takamasa Tamura , Motonobu Yoshikawa , Hiroshi Yamaguchi , Kazuhiko Ishimaru
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2006-134916 20060515
- 主分类号： G02B27/00
- IPC分类号： G02B27/00
摘要：
A diffusing plate has a surface including a plurality of fine concave/convex portions regularly arranged within a cycle equal to or smaller than a predetermined wavelength. The surface has a larger surface roughness than the predetermined wavelength. An average value for an angle between a normal vector of the tangent plane of a roughness shape of the surface and a normal vector of a reference plane of the surface is 5 degrees or more.
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