发明名称 |
HIGHLY CANTED RETROREFLECTIVE CUBE CORNER ARTICLE |
摘要 |
A retroreflective article that exhibits high retroreflective efficiency in response to light incident on the sheeting at high angles of incidence is disclosed. A retroreflective article includes a body portion having a base surface and a structured surface opposite the base surface. The structured surface includes a plurality of retroreflective cube corner elements defined by two intersecting groove sets. Each cube corner element has three tetragonal optically reflective faces that intersect to define a cube corner apex and two tetragonal non-optical faces that intersect along an edge. The symmetry axes of the cube corner elements are substantially parallel.
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申请公布号 |
CA2269478(A1) |
申请公布日期 |
1998.05.14 |
申请号 |
CA19972269478 |
申请日期 |
1997.10.15 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
SMITH, KENNETH L. |
分类号 |
G02B5/124;(IPC1-7):G02B5/124 |
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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