公开(公告)号：US20240209254A1

公开(公告)日：2024-06-27

申请号：US18286646

申请日：2022-03-30

Applicant: TOKUYAMA CORPORATION

Inventor： Yuki HATTORI ,  Katsuhiro MORI ,  Junji MOMODA

IPC: C09K9/02 ,  G02C7/10 ,  G02C7/12

CPC classification number: C09K9/02 ,  G02C7/102 ,  G02C7/12 ,  C09K2211/1018

Abstract: The optical article of the invention contains a photochromic compound, and a first compound having an absorption peak in a wavelength range of 550 to 600 nm, has a laminate structure in which (A) a first functional layer containing at least a photochromic compound and (B) a lens substrate independently exist, has a luminous transmittance of 30% or more in the state with no photochromic compound coloration, has a luminous transmittance of 25% or less in the state with photochromic compound coloration, and has a minimum transmittance of 0.1 to 20% in a wavelength range of 550 to 600 nm, in a state with photochromic compound coloration. According to the invention, there is provided a novel photochromic optical article exhibiting excellent photochromic properties, visibility and anti-glare properties, and further having a high contrast (red, green and blue can be clearly differentiated and the outline and protrusions/recesses of objects are clear).