Title:
MULTILAYER RADIATION COOLING FILM TRANSPARENT TO VISIBLE LIGHT
Document Type and Number:
WIPO Patent Application WO/2019/119787
Kind Code:
A1
Abstract:
The present invention provides a multilayer radiation cooling film transparent to visible light, comprising N alternately arranged film layers having different thicknesses. The multilayer radiation cooling film transparent to visible light adopts a novel film layer arrangement technique, such that the multilayer film performs radiation cooling while also demonstrating high transmittance of visible light. The multilayer film is composed of two types of materials having high transmittance of visible light. A resonant cavity is formed between material layers by means of a difference between dielectric constants of the two types of materials, and enhances the strength of an electric field in a region where the resonant cavity is located, thereby greatly improving radiance of the entire structure in comparison with an original material. The invention has a simple structure, is easy to manufacture and low in cost, and achieves good cooling effects and high transmittance of visible light.
Inventors:
LUO XIANGANG (CN)
MA XIAOLIANG (CN)
PU MINGBO (CN)
LI XIONG (CN)
GUO YINGHUI (CN)
MA XIAOLIANG (CN)
PU MINGBO (CN)
LI XIONG (CN)
GUO YINGHUI (CN)
Application Number:
PCT/CN2018/095780
Publication Date:
June 27, 2019
Filing Date:
July 16, 2018
Export Citation:
Assignee:
INST OPTICS & ELECTRONICS CAS (CN)
International Classes:
B32B9/04; B32B33/00
Domestic Patent References:
| WO2015005526A1 | 2015-01-15 |
Foreign References:
| CN108099299A | 2018-06-01 | |||
| CN105957912A | 2016-09-21 | |||
| CN205900562U | 2017-01-18 | |||
| CN204749422U | 2015-11-11 | |||
| CN102408806B | 2013-10-23 |
Other References:
See also references of EP 3628484A4
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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