发明名称 |
OPTICAL ELEMENT AND OPTICAL APPARATUS |
摘要 |
The optical element includes in order from a light-entering side, a first layer (012), a second layer (013), and a base member (011). The first layer includes a concavo-convex structure with convex portions (012a) and concave portions (012b) alternately formed at a pitch smaller than a wavelength of entering light, and the second layer satisfies the following conditions: where ns represents an effective refractive index of the first layer, nb represents a refractive index of the base member, and nA and dA respectively represent a refractive index and a thickness of the second layer. |
申请公布号 |
WO2009017182(A1) |
申请公布日期 |
2009.02.05 |
申请号 |
WO2008JP63716 |
申请日期 |
2008.07.24 |
申请人 |
CANON KABUSHIKI KAISHA;SANO, DAISUKE;OKUNO, TAKEHARU |
发明人 |
SANO, DAISUKE;OKUNO, TAKEHARU |
分类号 |
G02B1/11 |
主分类号 |
G02B1/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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