Title:
RADIATIVE COOLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163340
Kind Code:
A1
Abstract:
The present invention provides a radiative cooling device capable of suitably cooling a cooling target while reducing the cost of an optical reflective layer, and capable of providing suitable cooling effect over a prolonged period. The radiative cooling device is constituted by laminating an infrared radiation layer A that radiates infrared light IR from a radiation surface H and a light reflection layer B located on the opposite side of the radiation surface H of the infrared radiation layer A, and the light reflection layer B is constituted by laminating a first layer B1 made of silver or silver alloy, a second layer B2 made of aluminum or aluminum alloy, and a transparent alloy-resistant layer B3 for preventing the alloying of silver and aluminum such that the first layer B1, the transparent alloy-resistant layer B3, and the second layer B2 are located closer to the infrared radiation layer A in that order.
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Inventors:
SUEMITSU MASAHIRO (JP)
SAITO TADASHI (JP)
SAITO TADASHI (JP)
Application Number:
PCT/JP2019/001338
Publication Date:
August 29, 2019
Filing Date:
January 17, 2019
Export Citation:
Assignee:
OSAKA GAS CO LTD (JP)
International Classes:
G02B5/26; B32B7/035; B32B15/04; B32B17/06; F28F21/04; F28F21/08
Domestic Patent References:
| WO2016205717A1 | 2016-12-22 |
Foreign References:
| JP2014120487A | 2014-06-30 | |||
| JP2015018770A | 2015-01-29 | |||
| JP2005276402A | 2005-10-06 | |||
| US20150338175A1 | 2015-11-26 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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