发明名称 |
Optical film having a surface with rounded structures |
摘要 |
The present disclosure is directed to optical devices including a light source and an optical film having a first surface disposed to receive light from the light source and a second surface facing away from the light source. The second surface includes a two-dimensional array of closely packed substantially hemispherically-shaped structures. In some implementations of the present disclosure, the optical film further includes a substrate portion having an optical characteristic different from optical characteristics of the second surface comprising the two dimensional array.
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申请公布号 |
US7416309(B2) |
申请公布日期 |
2008.08.26 |
申请号 |
US20040026940 |
申请日期 |
2004.12.30 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
KO BYUNG-SOO;WHITNEY LELAND R.;CHAE DONGWON |
分类号 |
F21V9/14;F21V5/00 |
主分类号 |
F21V9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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