发明名称 |
LIGHT-SHIELDING COATING, LIGHT SHIELDING FILM AND OPTICAL ELEMENT |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-shielding coating capable of forming a light-shielding film having sufficiently small inner surface reflectance for actual use and a sufficient antiglare property at air interface for actual use, the light shielding film, and an optical element comprising the same. <P>SOLUTION: A light-shielding film comprises at least: epoxy resin; a coloring agent made of dye; titania fine particles in which the number average particle diameter of primary particles is 1 nm through 100 nm; and an epoxy resin hardening agent. The concentration of the titania fine particles is 20% by mass through 60% by mass. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013054349(A) |
申请公布日期 |
2013.03.21 |
申请号 |
JP20120176025 |
申请日期 |
2012.08.08 |
申请人 |
CANON INC |
发明人 |
YAMAMOTO SHUHEI;HOSOKAWA KATSUMOTO |
分类号 |
G02B5/00;C09D5/00;C09D7/12;C09D163/00 |
主分类号 |
G02B5/00 |
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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