Patent ID: 8153248
Filing Date: 2012-04-10
Classification: G02B,Y10T

Abstract:
1. A plastic lens comprising a plastic lens substrate having formed thereon a primer layer, a hard coat layer and an organic antireflective layer, in the order from the surface of the plastic lens substrate, the hard coat layer being a coating film containing a multifunctional epoxy compound, and formed from a coating composition comprising the following component A, component B and component C: Component A: Metal oxide fine particles having an average particle diameter of 1 to 200 nm and selected from composites of an oxide of titanium and an oxide of Silicon, Aluminum, Tin, Antimony, Tantalum, Cerium, Lanthanum, Iron, Zinc, Tungsten, Zirconium, or Indium; Component B: An organosilicon compound represented by the following formula: wherein R 1 represents an organic group with 2 or more carbon atoms, having a polymerizable reactive group, and X 1 represents a hydrolysable group; Component C: A compound having a biphenyl sulfide structure, represented by the following formula (1): wherein R and R′ each represent a hydrocarbon group or a hydroxyl group, and n is from 0 to 5, wherein the primer layer is formed from a coating composition containing a polyester resin; and wherein the organic antireflective layer is a coating film formed from a coating composition comprising the following components D and E, and has a refractive index at least 0.20 lower than the refractive index of the hard coat layer, Component D: An organosilicon compound represented by the following formula: wherein R 2 represents an organic group having a polymerizable reactive group, R 3 represents a hydrocarbon group having from 1 to 6 carbon atoms, X 2 represents a hydrolyzable group, n is 0 or 1, and m is 0 or 1; Component E: Silica fine particles having an average particle diameter of from 1 to 150 nm, having inner voids, and having a refractive index in a range of from 1.16 to 1.39.