发明名称 |
TRIANGULAR PYRAMID CUBE-CORNER RETROREFLECTION SHEET |
摘要 |
<p>To provide a triangular-pyramidal cube-corner retroreflective sheeting having a novel structure characterized in that a lateral face (face c) using a base edge (x) of triangular-pyramidal reflective elements faced each other and arranged in the closest-packed state by sharing the base edge (x) on a first bottom plane (virtual plane X-X') forms a triangle, two other faces (faces a and b) sharing one ridge line started from an apex (H) of the triangular-pyramidal reflective elements form a quadrangle, and the height (h') from the apex (H) up to the first bottom plane (virtual plane X-X') is substantially smaller than the height (h) from the apex (H) up to the substantially horizontal second bottom plane (Z-Z') including base edges (z and w) of the other lateral faces (faces a and b). <IMAGE></p> |
申请公布号 |
EP1164390(A1) |
申请公布日期 |
2001.12.19 |
申请号 |
EP19990906519 |
申请日期 |
1999.02.26 |
申请人 |
NIPPON CARBIDE KOGYO KABUSHIKI KAISHA |
发明人 |
MIMURA, IKUO;ADACHI, KEIJI |
分类号 |
G02B5/124;G09F13/16;(IPC1-7):G02B5/124;E01F9/00 |
主分类号 |
G02B5/124 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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