发明名称 TILED RETROREFLECTIVE SHEETING COMPOSED OF HIGHLY CANTED CUBE CORNER ELEMENTS
摘要 A retroreflective sheeting includes a first array of cube corner element opposing pairs and a second array of cube corner element opposing pairs. The symmetry axes of the cube corner elements in the first and second arrays are tilted in a backward direction at an angle of about 12 DEG to about 30 DEG from an axis normal to a base surface. The second array of cube corner elements is oriented approximately perpendicular to the first array to yield a retroreflective article providing generally uniform total light return about a 360 DEG range of orientation angles and/or a minimum total light return of about 5 % across such 360 DEG range. Also disclosed is a mold assembly suitable for use in forming the present retroreflective sheeting and a method of making a retroreflective article using the mold.
申请公布号 WO9901786(A1) 申请公布日期 1999.01.14
申请号 WO1997US21448 申请日期 1997.11.24
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 SMITH, KENNETH, L.;BENSON, GERALD, M.
分类号 G02B5/124;(IPC1-7):G02B5/124 主分类号 G02B5/124
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