发明授权
- 专利标题： Lens-type retroreflective sheeting
- 专利标题（中）： 透镜式逆反射片
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申请号： US536458申请日： 1995-09-25
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公开(公告)号： US5726803A公开(公告)日： 1998-03-10
- 发明人: Katsura Ochi , Osamu Tanaka , Makoto Takeda
- 申请人： Katsura Ochi , Osamu Tanaka , Makoto Takeda
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Carbide Kogyo Kabushiki Kaisha
- 当前专利权人： Nippon Carbide Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-259665 19940930
- 主分类号： G02B5/128
- IPC分类号： G02B5/128 ; G02B5/122 ; G02B5/124
摘要：
The present invention comprises lens-type retroreflective sheeting which is 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).
公开/授权文献
- USD326734S Table lamp or the like 公开/授权日：1992-06-02
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