| 发明名称 |
OPTICAL FILTER AND METHOD FOR MANUFACTURING OPTICAL FILTER |
| 摘要 |
There are provided an optical filter excellent in weather resistance and a method for manufacturing an optical filter. The optical filter of the present invention includes a transparent substrate, and an optical multilayer film provided on a surface of the transparent substrate. In the optical multilayer film, a low-refractive index film containing silicon oxide (SiO2) and a high-refractive index film higher in refractive index than the low-refractive index film are alternately stacked. A density of a portion of the low-refractive index film close to an interface between the low-refractive index film and the high-refractive index film is lower than a density of a portion of the low-refractive index film other than the portion close to the interface. |
| 申请公布号 |
US2016077257(A1) |
申请公布日期 |
2016.03.17 |
| 申请号 |
US201514951687 |
申请日期 |
2015.11.25 |
| 申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
TATEMURA Mitsuyuki;SAKURAI Akinori;NAOE Tadanari |
| 分类号 |
G02B5/20;C23C14/24;G02B1/10;G02B5/22;C23C14/54 |
主分类号 |
G02B5/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An optical filter, comprising:
a transparent substrate; and an optical multilayer film provided on a surface of the transparent substrate, having a low-refractive index film containing silicon oxide (SiO2) and a high-refractive index film higher in refractive index than the low-refractive index film, the low-refractive index film and the high-refractive index film being alternately stacked, wherein a density of a portion of the low-refractive index film close to an interface between the low-refractive index film and the high-refractive index film is lower than a density of a portion of the low-refractive index film other than the portion close to the interface. |
| 地址 |
Tokyo JP |
