发明名称 LIGHT SHIELDING FILM FOR OPTICAL ELEMENT, LIGHT SHIELDING COATING MATERIAL, AND OPTICAL ELEMENT
摘要 <P>PROBLEM TO BE SOLVED: To provide a light shielding film, which has thin thickness, causes little internal reflection, and causes no bleeding of a dye, for optical elements. <P>SOLUTION: The light shielding film for optical elements includes at least an epoxy resin, an amine curing agent, and a dye. The light shielding film has a mean extinction coefficient of 0.04 or more. One molecule of the dye has two or more amino groups. Preferably a ratio (minimum value/maximum value) of a minimum value to a maximum value of transmittance of the light shielding film to light with a wavelength of 400-700 nm is 0.7 or more. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011164494(A) 申请公布日期 2011.08.25
申请号 JP20100029515 申请日期 2010.02.12
申请人 CANON INC 发明人 KUBOTA REIKO
分类号 G02B5/00;C09D7/12;C09D163/00;G02B1/11 主分类号 G02B5/00
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