公开(公告)号：US06416188B1

公开(公告)日：2002-07-09

申请号：US09546161

申请日：2000-04-11

申请人： Jeanine M. Shusta ,  Norman D. Ligtenberg ,  William B. Robbins

发明人： Jeanine M. Shusta ,  Norman D. Ligtenberg ,  William B. Robbins

IPC分类号： G02B5128

CPC分类号： G02B5/128 ,  Y10T428/24876 ,  Y10T428/24901

摘要： Exposed lens retroreflective appliques incorporate a monolayer of beads and a dielectric mirror proximate the beads. A pigmented or otherwise colored bead bond layer in which the beads are partially embedded is visible through the dielectric mirror, giving the article a highly colored daytime appearance. The appliques exhibit an initial reflectivity. By appropriate materials selection, the appliques can be made to retain at least 75%, and in most instances at least 90%, of the initial reflectivity if subjected to fifty home laundering cycles. In one case the dielectric mirror includes zinc sulfide as a relatively high refractive index material and calcium fluoride as a relatively low refractive index material. In another case the dielectric mirror includes zinc sulfide as the relatively high refractive index material and silicon dioxide as the relatively low refractive index material.

摘要翻译： 暴露的透镜回射贴片结合了单层珠和靠近珠的电介质镜。 通过电介质镜可以看到其中珠子被部分嵌入的着色或其它着色的珠子接合层，使得该制品具有高度彩色的白天外观。 贴花表现出初始反射率。 通过适当的材料选择，如果经受了五十次家庭洗涤循环，则可以使贴图保持初始反射率的至少75％，并且在大多数情况下保持至少90％。 在一种情况下，电介质镜包括作为相对高折射率材料的硫化锌和作为相对低折射率材料的氟化钙。 在另一种情况下，电介质镜包括作为相对高折射率材料的硫化锌和作为较低折射率材料的二氧化硅。