发明授权
- 专利标题： Retroreflective articles having polymer multilayer reflective coatings
- 专利标题（中）： 具有聚合物多层反射涂层的回射制品
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申请号： US09259100申请日： 1999-02-26
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公开(公告)号： US06172810B2公开(公告)日： 2001-01-09
- 发明人: Robert J. Fleming , Joseph M. McGrath , Christopher S. Lyons
- 申请人： Robert J. Fleming , Joseph M. McGrath , Christopher S. Lyons
- 主分类号： G02B5122
- IPC分类号： G02B5122
摘要：
A retroreflective article that has a layer of optical elements and a multilayer reflective coating disposed on the optical elements. The reflective coating reflects light back into the optical elements so that it can be returned toward the light source. The multilayer reflective coating has multiple polymer layers and has layers that possess different refractive indices.
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