发明名称 |
MGF2 OPTICAL THIN FILM INCLUDING AMORPHOUS SILICON OXIDE BINDER, OPTICAL ELEMENT PROVIDED WITH THE SAME, AND METHOD FOR PRODUCING MGF2 OPTICAL THIN FILM |
摘要 |
An MgF2 optical thin film is formed on an optical surface of a base material. The MgF2 optical thin film includes MgF2 particles and an amorphous silicon oxide-based binder which exists on the surfaces of the MgF2 particles and between the MgF2 particles. Owing to this amorphous silicon oxide-based binder, the optical thin film can have high mechanical strength and high adhesion to the base material, while having excellent environment resistance and a lower refractive index. |
申请公布号 |
US2015362633(A1) |
申请公布日期 |
2015.12.17 |
申请号 |
US201514834309 |
申请日期 |
2015.08.24 |
申请人 |
NIKON CORPORATION |
发明人 |
ISHIZAWA Hitoshi;NIISAKA Shunsuke;MURATA Tsuyoshi |
分类号 |
G02B1/116;G02B1/118 |
主分类号 |
G02B1/116 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Tokyo JP |