Patent ID: 9547109
Date: 2017-01-17
CPC Classifications: G02B

Claim:
1. A retroreflective article, comprising: a retroreflective film including a prismatic layer having a plurality of retroreflective prism elements and a reflective metal coating on and conforming to the prismatic layer so that the film retroreflects light, the metal coating being opaque; a spacing layer underlying and adhered to the film, the spacing layer being in a range from transparent through translucent; an interleaf layer underlying and adhered to the spacing layer; at least one etched region in the form of at least one image through the metal coating to render the at least one region light transmissive; at least one of the spacing layer and the interleaf layer including one or more of the following contrast elements: a colorant, a color-shifting additive, a fluorescent additive, a phosphorescent additive and an infrared additive visible through the at least one etched region, and the contrast eiernent(s) providing contrast with the unetched region of the metal coating; wherein the metal coating is between the spacing layer and the retroreflective prism elements.