OPTICAL FILTER, IMAGING DEVICE, AND OPTICAL SENSOR

Title:

OPTICAL FILTER, IMAGING DEVICE, AND OPTICAL SENSOR

Document Type and Number:

WIPO Patent Application WO/2020/129909

Kind Code:

A1

Abstract:

The present invention provides an optical filter comprising a first glass substrate and a second glass substrate having an average transmittance of 80% or more of light having a wavelength of 400-600 nm, and an absorption layer provided between the first glass substrate and the second glass substrate, wherein the absorption layer contains at least one near-infrared-absorbing dye (A) selected from a squarylium dye, a cyanine dye, and a diimonium dye, and a transparent resin having a glass transition temperature of 130°C or above.

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Inventors:

HIGASHITAMORI SAYURI (JP)
SHIONO KAZUHIKO (JP)
HASEGAWA MAKOTO (JP)
SHIMADA TAKURO (JP)
WAKABAYASHI TAKERU (JP)

Application Number:

PCT/JP2019/049223

Publication Date:

June 25, 2020

Filing Date:

December 16, 2019

Export Citation:

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Assignee:

AGC INC (JP)

International Classes:

G02B1/115; C09B23/04; C09B57/00; G02B5/22; H01L27/146

Domestic Patent References:

WO2014030628A1	2014-02-27
WO2016186050A1	2016-11-24

Foreign References:

JP2017090687A	2017-05-25
JP2011213969A	2011-10-27

Attorney, Agent or Firm:

EIKOH PATENT FIRM, P.C. (JP)

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