发明名称 TRAFFIC SIGNAL SYSTEMS
摘要 <p>The present application relates to a traffic light including a light source from which propagates light rays and at least one layer of a structured brightness enhancement film and at least one layer of a light control film. The structured brightness enhancement film and the light control film are positioned adjacent to the light source such that a light ray emitted by the light source propagates through the brightness enhancement film and the light control film.</p>
申请公布号 WO2009123932(A2) 申请公布日期 2009.10.08
申请号 WO2009US38613 申请日期 2009.03.27
申请人 3M INNOVATIVE PROPERTIES COMPANY;LIU, YUFENG 发明人 LIU, YUFENG
分类号 G08G1/095 主分类号 G08G1/095
代理机构 代理人
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