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Patent Searching and Data


Title:
INFRARED REFLECTIVITY CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205280
Kind Code:
A1
Abstract:
The invention relates to an infrared reflectivity control device comprising at least one cell (1) which forms a housing comprising a top cover (2) that is transparent in the visible range and a bottom plate (3) bearing at least two electrodes (4a, 4b) which can be connected to an electrical generator (5), the housing enclosing a fluid (6) that is transparent in the visible range and which is charged with particles (7). This device is characterised in that: - the top cover (2) and the fluid (6) are transparent in the wavelength range from 2.5 micrometres to 20 micrometres; - the electrodes (4a, 4b) are reflective in the infrared range; - the electrodes (4a, 4b) are asymmetric, a first electrode (4a) having a first surface area and a second electrode (4b) having a second surface area, the first surface area being greater than the second surface area; - the particles (7) are of nanometric particle size and comprise at least one material capable of being electrically charged (non-zero zeta potential).

Inventors:
DUPONT LAURENT (FR)
CHRUN JONATHAN (FR)
VANCAEYZEELE CEDRIC (FR)
VIDAL FRÉDÉRIC (FR)
AUBERT PIERRE HENRI (FR)
LEGALL STEPHEN (FR)
FAGOUR SÉBASTIEN (FR)
PETITPAS ERIC (FR)
Application Number:
PCT/IB2021/052578
Publication Date:
October 14, 2021
Filing Date:
March 29, 2021
Export Citation:
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Assignee:
NEXTER SYSTEMS (FR)
INST MINES TELECOM (FR)
CY CERGY PARIS UNIV (FR)
International Classes:
G02F1/167; G02F1/1343; G02F1/1676; G02F1/16761; G02F1/16762; G02F1/1677
Foreign References:
US20180046055A12018-02-15
US20080211764A12008-09-04
US7034987B22006-04-25
US20090295765A12009-12-03
US20180267382A12018-09-20
US20080211764A12008-09-04
US7034987B22006-04-25
EP2992292A12016-03-09
EP3213146A12017-09-06
Attorney, Agent or Firm:
CABINET CHAILLOT (FR)
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