US Patent Issued to Essilor International on Aug. 26 for "Optical lens having an antireflection coating reflecting harmful blue light" (Singaporean Inventor)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,388, issued on Aug. 26, was assigned to Essilor International (Charenton-le-Pont, France).

"Optical lens having an antireflection coating reflecting harmful blue light" was invented by Xingzhao Ding (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one of the main faces comprising a multilayer antireflection coating having a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the multilayer antireflection coating(s) present on the main face(s) provide(s) the optical lens wi...