发明授权
US07835047B1 Bi-directional informational article within an optical variable devise 有权
光学变量设计中的双向信息文章

Bi-directional informational article within an optical variable devise
摘要:
An informational article including a holographic film layer and certain additional ink receptive coating, high-opacity blocking, security printing, image receptive coating, ultraviolet reflected core laminate, and/or adhesive layers coupled together. Certain of the layers of the information article include one or more apertures, which, when the apertures overlap, allow the holographic film layer to appear translucent when light is allowed to shine in the area of overlap.
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