LIGHT-EMITTING DIODE LIGHTING FIXTURE Russian patent published in 2015 - IPC F21S8/00 

FIELD: electricity.

SUBSTANCE: light-emitting diode lighting fixture contains light sources which are several powerful light-emitting diodes (LED) 1, each of which is implemented with the heat sink substrate 6, evenly (rows or in chessboard order) arranged with intervals on the printed-circuit board from one side of the bearing plate 2 and connected to at least one current driver 4 with the protective casing 5, and the protective optical light diffuser (OLD) 3. The size of intervals between LEDs 1 is selected from the condition of providing for each LED 1 at least 7 cm² of the surrounding area of the bearing plate 2 which is implemented with a possibility of free flow of atmospheric air from the suspension or any other fastening to the support opposite to the side of installation of the printed-circuit board with light-emitting diodes 1. LEDs 1 can be connected among themselves in series and connected by the flexible cable to the current driver 4. The lighting fixture can be implemented with several groups of LEDs 1, in each of which LEDs 1 are connected among themselves in series and are connected by the flexible cable to the current driver 4. OLD 3 can be implemented in the form of the panel with transparent optical lenses for each of light-emitting diodes 1. OLD 3 is fastened to the plate 2 by means of screws through the tight temperature and moisture resistant gasket. OLD 3 with lenses can be implemented monolithic or in the form of the compound panel. OLD 3 with lenses can be made of transparent optical polycarbonate. Light-emitting diodes with the minimum power 1 W can be used.

EFFECT: simplification of design and reduction of dimensions and weight, expansion of temperature range of no-failure operation of light-emitting diodes and temperature range of the lighting fixture operation.

11 cl, 5 dwg