LIGHT-EMITTING DIODE LIGHTING FIXTURE Russian patent published in 2014 - IPC F21S13/00 

FIELD: electricity.

SUBSTANCE: invention is related to light engineering and may be used for outdoor, industrial, household lighting and architectural lighting design. The light-emitting diode lighting fixture contains a translucent body frame of the lighting fixture with cavity with a light-emitting diode (LED) fixed at the base of the translucent body frame in liquid cooling medium placed in the LED emitting sector. To the above liquid cooling medium heat-conductive elements are introduced; they are in solid phase and made of translucent material with zero buoyancy in the cooling medium. Quantity and dimensions of the heat-conductive elements are selected in order to ensure their free mutual sliding within the cavity limits in the translucent body frame, which is equipped with a device setting liquid cooling medium in motion. The heat-conductive elements may have magnetic properties ensuring their setting in motion by electromagnetic field. At that at least a part of the surface of the heat-conductive elements in solid phase and the non-emitting surface of the LED may be equipped with a reflecting coating and quantity of the heat-conductive elements in solid phase is selected on light transmission calculation for the cooling medium. The heat-conductive elements may be made resilient with heat potential of the liquid medium.

EFFECT: improving efficiency of cooling due to increase of heat transmission coefficient for the cooling medium and balancing parameters of light flux within the whole area of the formed light spot.

4 cl, 5 dwg