Title:
THIN FILM PHOTOSENSITIVE FILTER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/248334
Kind Code:
A1
Abstract:
Provided is a thin film photosensitive filter comprising: one or more iron oxide layers; and one or more low refractive index layers having a lower refractive index than the one or more iron oxide layers. In the multilayer film, each iron oxide layer and each low refractive index layer are alternately laminated, the ratio of the number of oxygen atoms to the number of iron atoms in each iron oxide layer is greater than or equal to 4/3 and less than 3/2, and the extinction coefficient of each iron oxide layer is at least 0.1 for light having a wavelength in the 700-2000 nanometer wavelength range.
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Inventors:
ENDO MASANORI (JP)
Application Number:
PCT/JP2022/024675
Publication Date:
December 28, 2023
Filing Date:
June 21, 2022
Export Citation:
Assignee:
NALUX CO LTD (JP)
International Classes:
G02B5/22; G02B5/28
Domestic Patent References:
| WO2013024531A1 | 2013-02-21 |
Foreign References:
| JP2017188415A | 2017-10-12 | |||
| JP2010191471A | 2010-09-02 |
Attorney, Agent or Firm:
FUSHIMI, Naoya (JP)
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