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    • 6. 发明授权
    • Cube corner article with altered inactive areas and method of making same
    • 具有改变的非活动区域的立方体角文章及其制作方法
    • US5940212A
    • 1999-08-17
    • US960841
    • 1997-10-30
    • Norbert L. JohnsonTheodore J. SzczechBruce D. Orensteen
    • Norbert L. JohnsonTheodore J. SzczechBruce D. Orensteen
    • G02B5/124G02B5/122
    • G02B5/124Y10S359/90
    • A reflective article has a structured surface which includes geometric structures each having at least three specularly reflecting faces which converge at an apex or other extremity. The article is marked with a plurality of spots located between the extremities, the spots having different reflectivity characteristics than the specularly reflecting faces. The geometric structures can comprise cube corner elements. The spots can be diffusely reflecting and distributed uniformly on the structured surface or distributed to define a particular pattern. The article can have a plurality of first active areas at a first illumination geometry, and the spots can be sized and positioned such that they avoid the first active areas. The article can have first inactive areas adjacent the first active areas, and each spot can cover a majority of one inactive area. Alternatively, at least some of the spots can be decentered within their respective inactive areas such that they are visible in retroreflected light only at selected illumination geometries, thereby forming a directional image.
    • 反射制品具有结构化表面,其包括几何结构,每个结构具有至少三个在顶点或其他末端会聚的镜面反射面。 该物品被标记有位于四肢之间的多个斑点,这些斑点具有与镜面反射面不同的反射特性。 几何结构可以包括立体角元件。 斑点可以在结构化表面上均匀地反射和均匀分布或分布以限定特定图案。 物品可以具有在第一照明几何形状的多个第一有源区域,并且斑点可以被定尺寸和定位,使得它们避开第一有源区域。 物品可以具有与第一有效区域相邻的第一非活动区域,并且每个斑点可以覆盖一个非活动区域的大部分。 或者,至少一些点可以在它们各自的无效区域内偏心,使得它们仅在选定的照明几何形状下在回射光中可见,从而形成定向图像。