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Dual orientation retroreflective sheeting

DC
  • US 5,936,770 A
  • Filed: 07/02/1997
  • Issued: 08/10/1999
  • Est. Priority Date: 01/19/1996
  • Status: Expired due to Term
First Claim
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1. A retroreflective sheeting comprising a substrate having a base surface and a structured surface opposite the base surface, the structured surface comprising a plurality of zones of cube corner elements, including:

  • a first zone comprising an array of cube corner elements, the optical axes of the cube corner elements canted to define a first primary plane of improved retroreflective performance at increased entrance angles, the first primary plane extending substantially parallel with a longitudinal edge of the sheeting; and

    a second zone comprising an array of cube corner elements, the optical axes of the cube corner elements canted to define a second primary plane of improved retroreflective performance at increased entrance angles, the second primary plane being perpendicular to the first primary plane.

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