Title:
OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2023/022118
Kind Code:
A1
Abstract:
The present invention relates to an optical filter comprising a substrate and a dielectric multilayer film that is laminated, as an outermost layer, on at least one principal surface side of the substrate, the substrate having a resin film having a thickness of 3 µm or less and including a resin, a UV pigment 1 that has a maximum absorption wavelength of 360-390 nm in the resin, and an IR pigment that has a maximum absorption wavelength of 680-800 nm in the resin, and the optical filter satisfying all of prescribed spectral characteristics (i-1)-(i-8).
Inventors:
ORITA YUICHIRO (JP)
SHIONO KAZUHIKO (JP)
SHIMADA TAKURO (JP)
SHIONO KAZUHIKO (JP)
SHIMADA TAKURO (JP)
Application Number:
PCT/JP2022/030832
Publication Date:
February 23, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
G02B5/22; C09B23/04; C09B67/20; G02B1/115; G02B5/26; G02B5/28
Domestic Patent References:
| WO2017094858A1 | 2017-06-08 |
Foreign References:
| JP2018132609A | 2018-08-23 | |||
| JP2019200399A | 2019-11-21 | |||
| JP2019078816A | 2019-05-23 | |||
| JP2019032371A | 2019-02-28 | |||
| JP2019164269A | 2019-09-26 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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