G - Physics – 02 – B
Patent
G - Physics
02
B
88/113, 40/58
G02B 5/128 (2006.01) G02B 5/136 (2006.01) G09F 13/16 (2006.01)
Patent
CA 2015995
Abstract of the Disclosure Microsphere-based retroreflective articles having exceptionally high retroreflective brightness, particularly at divergence angles of up to 0.5° may be made by selection of microspheres having defined combinations of average diameter and average refractive index.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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