发明名称 Cube-corner retroreflective articles having tailored divergence profiles
摘要 Cube-corner retroreflective article having improved divergence profiles. The three lateral reflecting faces of the cube-corner retroreflective elements are formed by three intersecting sets of parallel V-shaped grooves, and at least one of the sets includes, in a repeating pattern, at least two groove side angles that differ from one another. Thereby the array of cube-corner retroreflective elements is divided into repeating sub-arrays that each comprise a plurality of cube-corner retroreflective elements in a plurality of distinctive shapes that retroreflect incident light in distinctively shaped light patterns.
申请公布号 US4775219(A) 申请公布日期 1988.10.04
申请号 US19860933470 申请日期 1986.11.21
申请人 MINNESOTA MINING & MANUFACTURING COMPANY 发明人 APPELDORN, ROGER H.;NELSON, JOHN C.;GARDINER, MARK E.;HOOPMAN, TIMOTHY L.
分类号 G02B5/124;(IPC1-7):G02B5/124;G02B5/122;G02B5/136 主分类号 G02B5/124
代理机构 代理人
主权项
地址