Title:
INFRARED ABSORBER, METHOD FOR MANUFACTURING SAME, BLACK-BODY RADIATION DEVICE, AND RADIATIVE COOLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/181259
Kind Code:
A1
Abstract:
Provided are an infrared absorber having extremely low reflectivity in the wavelength band of infrared rays, a method for manufacturing the same, a black-body radiation device, and a radiative cooling device. Provided is an infrared absorber 10 provided with: an absorption layer 11 comprising carbon black and a resin; and, on the absorption layer 11, a surface layer 12 that comprises a resin including essentially no pigment and that has an optical confinement structure 13 in which a plurality of minute projections are formed on the surface thereof, the hemispherical total reflectivity of the infrared absorber 10 in infrared wavelengths of 5-15 µm being 0.2% or less. Further provided are a method for manufacturing the infrared absorber, a black-body radiation device, and a radiative cooling device.
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Inventors:
AMEMIYA KUNIAKI (JP)
SHIMIZU YUHEI (JP)
SHIMIZU YUHEI (JP)
Application Number:
PCT/JP2022/003824
Publication Date:
September 01, 2022
Filing Date:
February 01, 2022
Export Citation:
Assignee:
AIST (JP)
International Classes:
G02B5/22; G01J5/90; G02B1/111; G02B5/00; G02B5/02
Domestic Patent References:
| WO2019087439A1 | 2019-05-09 | |||
| WO2019176409A1 | 2019-09-19 | |||
| WO2019058833A1 | 2019-03-28 |
Foreign References:
| JP2008233850A | 2008-10-02 | |||
| JP2006250513A | 2006-09-21 | |||
| JP2004333129A | 2004-11-25 |
Attorney, Agent or Firm:
SHIBA Tetsuo et al. (JP)
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