ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,695, issued on Sept. 23, was assigned to HOYA LENS THAILAND LTD. (Patumthani, Thailand).
"Spectacle lens" was invented by Susumu Nagatsuka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a spectacle lens including multilayer films on an object-side surface and an eyeball-side surface of a lens substrate, in which a reduction ratio of light in a wavelength band of 800 to 1400 nm in the spectacle lens is 45.0% or more, a ratio of a mean reflectance on the eyeball-side surface of the spectacle lens to a mean reflectance on the object-side surface of the spectacle lens is 0.2 to 0.8 in the wavelength band, and a mean reflectance on th...