Patent ID: 7429105
Filing Date: 2008-09-30
Classification: C07D,C09B,C09K,G02B,G02F,G03C,Y10T

Abstract:
1. A method of making an optical element comprising overmolding an at least partial coating comprising an at least partially ordered liquid crystal material and at least one at least partially aligned photochromic-dichroic compound on at least a portion of an optical substrate, wherein overmolding comprises: placing at least a portion of a surface of the optical substrate adjacent a surface of a transparent mold such that the surface of the optical substrate and the surface of the transparent mold define a molding region; introducing a liquid crystal material and at least one photochromic-dichroic compound into the molding region defined by the surface of the optical substrate and the surface of the transparent mold such that at least a portion of the liquid crystal material coats at least a portion of the surface of the optical substrate; at least partially ordering at least a portion of the liquid crystal material such that the at least partially ordered portion of the liquid crystal material at least partially aligns at least a portion of the at least one photochromic-dichroic compound with at least a portion of the at least partially ordered liquid crystal material; at least partially polymerizing at least a portion of the liquid crystal material; and separating the optical substrate and the liquid crystal material from the transparent mold.