Search International and National Patent Collections

1. (WO2018221424) OPTICAL FILTER FOR AMBIENT LIGHT SENSOR

Pub. No.:    WO/2018/221424    International Application No.:    PCT/JP2018/020220
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: G02B 5/22
C09K 3/00
G01J 1/02
G01J 1/04
H01L 31/0232
Applicants: JSR CORPORATION
JSR株式会社
Inventors: OHASHI Yukie
大橋 幸恵
NAGAYA Katsuya
長屋 勝也
OTSUKI Toshihiro
大月 敏敬
Title: OPTICAL FILTER FOR AMBIENT LIGHT SENSOR
Abstract:
The purpose of the present invention to provide an optical filter which is capable of achieving both excellent visible light transmittance and near-IR cut performance even when the incidence angle is increased with the reduction in the profile of equipment provided with ambient light sensors, and which enables the reduction of warping and distortions and can be increased in size. The optical filter for an ambient light sensor is characterized by comprising a base material that satisfies the requirement (a), and by satisfying a specific optical characteristic: the requirement (a) is that the optical filter has a layer including a compound (A) having an absorption maximum in a wavelength range of 650 to less than 800 nm, and a compound (B) having an absorption maximum in a wavelength range of 800-1850 nm.