Patent ID: 8613982
Filing Date: 2013-12-24
Classification: B05D

Abstract:
1. A method of producing coated lenses comprising the steps of: (A) holding a lens with its surface facing upward by a spinning device that supports and rotates the lens; (B) feeding a photocurable coating solution onto an upper surface of the lens held by said spinning device; (C) spreading the photocurable coating solution fed onto the upper surface of the lens by using a flexible film while rotating the lens; and (D) forming a coating by curing said photocurable coating solution by irradiating the “lens coated with the photocurable coating solution that is spread thereon through said step (C)” with light; wherein said photocurable coating solution has a viscosity at 25° C. of 80 to 1000 centipoises (cP), and further comprising a step (E) of bringing an edge portion of a spatula into contact with an upper edge portion of the lens held by said spinning device, wherein the edge portion of the spatula is tilted at an angle of 5 to 35° relative to a vertical line toward the center of the lens, an upper portion of said spatula being tilted toward the center side of the lens, said step (E) being executed after the end of said step (A) but before the photocurable coating solution arrives at a circumferential edge portion of the lens in said step (C) to thereby guide an excess of the photocurable coating solution from the upper edge portion of the lens to a side of the spatula and consequently prevent the coating solution from dripping on a side surface of the lens at the time when the photocurable coating solution is being spread, wherein the lens set in said step (A) is a lens having a primer layer formed on the surface thereof by a spin-coating method.