发明名称 |
Patterned pavement markings with upright retroreflectors. |
摘要 |
An improved pavement marking sheet material, and a method for making such pavement marking sheet material. The pavement marking sheet material comprises a selected configuration of upright retroreflectors. The upright retroreflectors are arranged in a selected configuration so as to maximize reflectivity as measured at actual observation geometries by allowing light to be incident to effective portions of the retroreflective elements on the upright retroreflectors. <IMAGE> |
申请公布号 |
EP0683270(A3) |
申请公布日期 |
1996.04.17 |
申请号 |
EP19950107696 |
申请日期 |
1995.05.19 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
HEDBLOM, THOMAS P.,;BRADSHAW, THOMAS I., |
分类号 |
E01F9/04;E01F9/08;G02B5/128;G09F13/16;G09F19/22 |
主分类号 |
E01F9/04 |
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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