Optical: systems and elements – Signal reflector – Including a curved refracting surface
Patent
1994-06-23
1997-09-30
Phan, James
Optical: systems and elements
Signal reflector
Including a curved refracting surface
359529, 359530, 359538, 359539, 359541, G02B 5128, G02B 5122
Patent
active
056731485
ABSTRACT:
Encapsulated retroreflective element comprising a retroreflective assembly made up of a transparent optical body and a reflective member and essentially completely encapsulated within a dense, substantially transparent oxide coating. Also a method for making such retroreflective elements and articles and compositions comprising such retroreflective elements.
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Budd Kenton D.
Morris Geoffrey P.
Griswold Gary L.
Jordan Robert H.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Phan James
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