发明名称 Lens-type retroreflective sheeting
摘要 <p>The present invention discloses lens-type retroreflective sheeting excellent in appearance and having constant thickness and desired retroreflective performance, wherein the transparent microspheres in the retroreflective layer are composed of transparent microspherical lenses (A) having a refractive index of 1.8 or more and transparent microspherical fillers (B) having a refractive index different by at least 5 % from the refractive index of the lenses (A).</p>
申请公布号 EP0704719(A2) 申请公布日期 1996.04.03
申请号 EP19950115551 申请日期 1995.10.02
申请人 NIPPON CARBIDE KOGYO KABUSHIKI KAISHA 发明人 OCHI, KATSURA;TANAKA, OSAMU;TAKEDA, MAKOTO
分类号 G02B5/128;(IPC1-7):G02B5/128 主分类号 G02B5/128
代理机构 代理人
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