Lamina comprising cube corner elements and retroreflective sheeting

  • US 7,329,012 B2
  • Filed: 08/02/2007
  • Issued: 02/12/2008
  • Est. Priority Date: 03/06/2003
  • Status: Active Grant
First Claim
Patent Images

1. Retroreflective sheeting comprising an array of preferred geometry cube corner elements that exhibits an average brightness at 0°

  • and 90°

    orientation according to ASTM D4596-1a of at least 375 candelas/lux/m2 for an entrance angle of −

    4° and

    an observation angle of 0.5°

    .

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