Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent
1995-06-29
1998-11-10
Phan, James
Optical: systems and elements
Signal reflector
3-corner retroreflective
359531, 359532, 359536, 404 14, G02B 5122, G02B 5128
Patent
active
058352716
ABSTRACT:
A retroreflective element that exhibits exceptional wet retroreflectivity, and a method of manufacturing the same. The retroreflective element includes an assembly having a multi-sided retroreflector and a clear thermoplastic. In one embodiment, the clear thermoplastic is at least partially thermally deformed to create a convex retroreflective dome for capturing high incident angle light rays. The retroreflective elements may be used in a pavement marking system, such as attached to pavement marking tape or deposited in pavement marking paint.
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Bailey Terry R.
Belisle Louis C.
Kusilek Thomas V.
May David C.
Stump Larry K.
Jordan Robert H.
Minnesota Mining and Manufacturing Company
Olson Peter L.
Phan James
LandOfFree
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