Color variation inducing device

G - Physics – 02 – F

Patent

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Details

G02F 1/23 (2006.01) B43K 8/22 (2006.01) F25B 21/04 (2006.01) G01D 15/10 (2006.01)

Patent

CA 2063973

A color variation inducing device is positioned in contact with or in the proximity of or effects action through air blowing means on a thermally color-varying article provided with a thermally color-varying layer, thereby inducing color variation in the thermally color-varying layer. The device comprises an electrothermal converter device provided with a heat absorbing portion and a heat generating portion based on Peltier effect, a radiator connected to the heat generating side of the electrothermal converter device, and a casing for housing and supporting the electrothermal converter device, wherein the electrothermal converter device is rendered functionable under the application of a DC voltage in such a manner that the heat absorbing side thereof exhibits a temperature reduction of at least 3°C with respect to the ambient temperature, within an ambient temperature range from 10 to 35°C.

Cette invention concerne un dispositif variateur de couleur mis en contact ou à proximité d'un article thermochromique et pouvant aussi agir par voie de jets d'air pour faire varier la couleur d'une couche thermochromique dudit article. Le dispositif comprend un convertisseur électrothermique à effet Peltier ayant une partie absorbant la chaleur et une partie générant de la chaleur, un radiateur raccordé à son côté générateur de chaleur et une enveloppe de protection. Le convertisseur électrothermique fonctionne en courant continu et son côté absorbeur de chaleur réalise une baisse de température d'au moins 3 degrés Celsius par rapport à la température ambiante, à l'intérieur d'une plage de températures ambiantes allant de 10 à 35 degrés Celsius.

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