Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent
1997-10-09
1999-07-27
Phan, James
Optical: systems and elements
Signal reflector
3-corner retroreflective
359900, 264 19, 264 27, G02B 5124
Patent
active
059300400
ABSTRACT:
A flexible, durable, cube-cornered retroreflective article capable of accommodating the expansion and contraction of the underlying polymeric substrate where such article has a pillowed or curved microstructured member bonded in a regular pattern to a sealing member. The retroreflective article has normal and stressed states. In the normal state, the microstructured member is substantially parallel with the sealing member. In the stressed state, the microstructured member is either compressed or elongated and the sealing member is substantially flat. The retroreflective article may be attached to traffic control devices, such as polymeric barrels, cones, or tubes to direct and guide motorists through road construction areas.
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Essien Michael A.
Janovec Jeffrey D.
3M Innovative Properties Company
Olson Peter L.
Phan James
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