发明名称 LIGHT-SHIELDING FILM FOR OPTICAL ELEMENT AND OPTICAL ELEMENT HAVING LIGHT-SHIELDING FILM
摘要 A light-shielding film for optical element includes at least a resin and a colorant. The light-shielding film for optical element has an average extinction coefficient of 0.03 or more and 0.15 or less as an average of extinction coefficients of the whole light-shielding film for light having wavelengths ranging from 400 to 700 nm.
申请公布号 US2011200810(A1) 申请公布日期 2011.08.18
申请号 US201113026001 申请日期 2011.02.11
申请人 CANON KABUSHIKI KAISHA 发明人 KUBOTA REIKO
分类号 B32B27/20;C09K3/00;G02B1/10 主分类号 B32B27/20
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