公开(公告)号：US20190227208A1

公开(公告)日：2019-07-25

申请号：US16369653

申请日：2019-03-29

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Asana YOSHIOKA ,  Shoko SUZUKI ,  Hiroki HOTAKA

IPC: G02B5/20 ,  G02B5/22 ,  C09B23/10 ,  C09B57/00 ,  G02B5/08

Abstract: To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.