Title:
OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2024/048511
Kind Code:
A1
Abstract:
The present invention relates to an optical filter which is sequentially provided with a dielectric multilayer film 1, a resin film, a phosphate glass and a dielectric multilayer film 2 in this order, wherein: the resin film contains a resin and a near-infrared absorbing dye that has a maximum absorption wavelength of 690 nm to 800 nm in the resin; the resin film has a thickness of 10 µm or less; and the optical filter satisfies all of the specific spectral characteristics (i-1) to (i-5).
Inventors:
NAGATA TAKASHI (JP)
SAKAGAMI TAKAHIRO (JP)
SHIONO KAZUHIKO (JP)
ORITA YUICHIRO (JP)
SAKAGAMI TAKAHIRO (JP)
SHIONO KAZUHIKO (JP)
ORITA YUICHIRO (JP)
Application Number:
PCT/JP2023/030943
Publication Date:
March 07, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
G02B5/28; C09B23/10; C09B23/14; C09B57/00; G02B5/22
Domestic Patent References:
| WO2014034386A1 | 2014-03-06 |
Foreign References:
| JP2019144578A | 2019-08-29 | |||
| JP2019066746A | 2019-04-25 | |||
| JP2019066742A | 2019-04-25 | |||
| JP2020158383A | 2020-10-01 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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