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Light directing construction having corrosion resistant feature

  • US 6,626,545 B2
  • Filed: 12/31/2002
  • Issued: 09/30/2003
  • Est. Priority Date: 10/22/1999
  • Status: Expired due to Fees
First Claim
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1. A light directing construction, comprising:

  • (a) a prismatic structure having first and second surfaces, the second surface including saw-tooth formations having tilted surfaces;

    the prismatic structure made from a non-halogenated UV polymerizable composition;

    (b) a transflective metal coating provided proximate to the saw-tooth formations, the transflective metal coating having a transmission of at least 10% of visible light; and

    (c) a corrosion resistant intermediate layer present between the transflective metal coating and the prismatic structure, the corrosion resistant layer providing a decrease in the sum of transmission and reflection of visible light of less than 5%.

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