A retroreflective article includes a flat front surface, and a structured rear surface displaced from the flat front surface. The structured rear surface is provided with arrays of sets of three mutually perpendicular lateral triangular sides, and a plurality of trigonal linear prisms. The three lateral triangular sides have a common apex and uncommon linear base edges. The linear prisms are disposed along at least one of the linear base edges of the three lateral triangular sides.
申请公布号
WO0120373(A1)
申请公布日期
2001.03.22
申请号
WO2000KR01024
申请日期
2000.09.08
申请人
LG CHEMICAL LTD.;YOON, SEOK-IL;BAEK, JONG-SOO;CHOI, SEOK-CHEOL