发明名称 |
Optical element and optical pickup device |
摘要 |
An optical element irradiated with a light flux having a wavelength of 350 nm to 450 nm, is provided with a synthetic resin base material; and an antireflection film provided on the synthetic resin base material and including a contact layer being in contact with the synthetic resin base material, wherein the contact layer is a film made of a material containing no oxygen atom or a film made of a mixed material or a material containing no oxygen atom and a material containing an oxygen atom in which the mixed material contains the material containing an oxygen atom less than 10%.
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申请公布号 |
US2005248864(A1) |
申请公布日期 |
2005.11.10 |
申请号 |
US20050050151 |
申请日期 |
2005.02.04 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
TOKUHIRO SETSUO;OHTA TATSUO |
分类号 |
G02B1/11;G02B5/22;G11B7/135;(IPC1-7):G02B5/22 |
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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