发明名称 Road sign
摘要 A road sign includes an installation portion provided with a lighting window, a sign display portion that includes a sign member that uses light to display a prescribed sign, and a light-guide structure that guides light entering the lighting window to the sign member to display the sign by reflecting or transmitting the light. The road sign configuration renders the sign clearly visible even when the light comes from car headlights on a low-beam setting.
申请公布号 US6151821(A) 申请公布日期 2000.11.28
申请号 US19980018178 申请日期 1998.02.03
申请人 NAKAJIMA, KENICHI 发明人 NAKAJIMA, KENICHI
分类号 E01F9/00;E01F9/015;F21V8/00;G09F13/04;G09F13/14;(IPC1-7):G09F13/02 主分类号 E01F9/00
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