Photochromic lens

摘要

A photochromic lens is composed of a lens member made of a lens resin; and a photochromic layer applied on at least one side of the lens member and formed of a resin of a three-dimensional network structure. The layer-forming resin contains a spirooxazine compound represented by the following general formula (I): <IMAGE> (I) wherein R1 means a hydrogen or halogen atom or a cyano, C1-6 alkyl or C1-6 alkoxy group, and R2 denotes a C1-6 alkyl group, -CH2)nCOOH, -CH2)nCN, substituted arylalkyl group or -CH2)nCOOR in which R is a C1-6 alkyl group and n stands for an integer of 1-4. The layer-forming resin may additionally contain a phenol resin and/or a phenolic compound. A hard coat layer may optionally be applied on the surface of the photochromic layer.