Lens-type retroreflective sheeting

Details Lens-type retroreflective sheeting Lens-type retroreflective sheeting

1995-09-25

1998-03-10

Dzierzynski, Paul M

Optical: systems and elements

Signal reflector

3-corner retroreflective

359530, 359536, 359538, 359540, G02B 5122, G02B 5124, G02B 5128

Patent

active

057268037

ABSTRACT:
The present invention comprises lens-type retroreflective sheeting which is excellent in appearance and having constant thickness and desired retroreflective performance, wherein the transparent microspheres in the retroreflective layer are composed of transparent microspherical lenses (A) having a refractive index of 1.8 or more and transparent microspherical fillers (B) having a refractive index different by at least 5% from the refractive index of the lenses (A).

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