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公开(公告)号：EP3206058A4
公开(公告)日：2018-04-11
申请号：EP15848706
申请日：2015-10-08
申请人： NIPPON KAYAKU KK
CPC分类号： G02B5/0816 , B60K35/00 , B60K2350/106 , B60K2350/2052 , B60K2350/2069 , B60K2350/921 , G02B5/08 , G02B5/26 , G02B5/30 , G02B5/3083 , G02B27/01 , G02B27/0101 , G02B2027/0118 , G02B2027/012 , G02B2027/0194 , G02F1/1335
摘要： The present invention is to propose a light reflecting film that can effectively improve reflectance of only a specific polarized light while maintaining high visible light transmittance, as well as a light controlling film, an optical film, a functional glass and a head-up display including the same. A light reflecting film comprises at least two light reflecting layers that are laminated, the at least two light reflecting layers including at least one of light reflecting layers among a light reflecting layer PRL-1, a light reflecting layer PRL-2 and a light reflecting layer PRL-3, the light reflecting layer PRL-1 having a central reflection wavelength of greater than or equal to 400 nm but less than 500 nm and a reflectance to ordinary light at the central reflection wavelength of greater than or equal to 5% but less than or equal to 25%, the light reflecting layer PRL-2 having a central reflection wavelength of greater than or equal to 500 nm but less than 600 nm and a reflectance to ordinary light at the central reflection wavelength of greater than or equal to 5% but less than or equal to 25%, the light reflecting layer PRL-3 having a central reflection wavelength of greater than or equal to 600 nm but less than 700 nm and a reflectance to ordinary light at the central reflection wavelength of greater than or equal to 5% but less than or equal to 25%, the at least two light reflecting layers having central reflection wavelengths that are different from each other. All of the at least two light reflecting layers that are laminated have a property of reflecting polarized light having the same orientation.
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