Led illuminated lamp with thermoelectric heat management

F - Mech Eng,Light,Heat,Weapons – 21 – V

Patent

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Details

F21V 29/00 (2006.01)

Patent

CA 2539610

The present invention relates to Light Emitting Diode (LED) based lamps utilising thermoelectric modules improving the efficiency of the lamps. The present invention provides in a first aspect a light illuminating device that comprises at least one light emitting diode (LED), at least one thermoelectric module (TEM) having a first surface which is thermally connected to the LED, a heat sink thermally connected to a a second surface of the at least one TEM, a thermally insulating cover creating a chamber substantially insulating the LED from ambient air. The LED may be of any conventional type, the invention however is particularly useful for devices using hi-flux LEDs, including traffic lights, illuminated roadway and/or emergency signs, airport runway lights and such.

La présente invention a trait à des lampes à base de diode électroluminescente utilisant des modules thermoélectriques en vue d'améliorer l'efficacité des lampes. La présente invention, dans un premier aspect, propose un dispositif d'éclairage lumineux comportant au moins une diode électroluminescente, au moins un module thermoélectrique présentant une première surface qui est en liaison thermique avec la diode électroluminescente, un dissipateur de chaleur relié à une deuxième surface dudit au moins un module thermoélectrique, un couvercle d'isolation thermique créant une enceinte isolant sensiblement la diode électroluminescente de l'air ambiant. La diode électroluminescente peut être de type conventionnel quelconque, cependant l'invention est particulièrement utiles pour des dispositifs utilisant des diodes électroluminescentes à flux élevé, comprenant des feux de circulation, des éclairages routiers et/ou des signalisations d'urgence, des balisages lumineux de piste d'atterrissage et analogues.

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