Retroreflective assembly and process for making same

Details Retroreflective assembly and process for making same Retroreflective assembly and process for making same

G - Physics

02

B

G02B 5/128 (2006.01) E01F 9/04 (2006.01) E01F 9/06 (2006.01)

Patent

CA 2127533

2127533 9316402 PCTABS00025 Retroreflective assembly comprising: a) a transparent globule having a first, uncoated part-spherical surface portion for reception of incident light; a second, substantially flat surface portion opposite the first surface portion; and a third, toroidal surface portion intermediate the first and second surface portions, the toroidal surface having a radius of curvature smaller than the radius of curvature of the first part-spherical surface portion; b) a monolayer of externally reflecting transparent microspheres for focusing and retroreflecting light beams incident upon the first surface portion and which have passed through the globule, the monolayer being applied to at least a part of the toroidal surface portion; and c) a layer of diffuse reflecting pigment disposed behind the monolayer of microspheres. Optionally, a space coat is interposed between the monolayer and the diffuse reflecting pigment. In some embodiments, fluorescent pigment isused.

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