Patent ID: 8649081

Claim:
A photochromic-dichroic article comprising: (a) a substrate having a first surface and a second surface; (b) a first photochromic-dichroic layer positioned over said first surface of said substrate, said first photochromic-dichroic layer comprising a first photochromic-dichroic compound, said first photochromic-dichroic compound being laterally aligned within said first photochromic-dichroic layer and defining a first polarization axis of said first photochromic-dichroic layer; and (c) a second photochromic-dichroic layer positioned over said first photochromic-dichroic layer, said second photochromic-dichroic layer comprising a second photochromic-dichroic compound, said second photochromic-dichroic compound being laterally aligned within said second photochromic-dichroic layer and defining a second polarization axis of said second photochromic-dichroic layer, wherein said first polarization axis and said second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°.