FIELD: physics.
SUBSTANCE: described light-emitting diode has an emitting crystal (crystals), a conical holder and a luminophor, where the holder is made from white material with angle of inclination to the wall equal to 60+5 -10 degrees and height equal to 2-3 times the cross dimensions of the crystal. The walls of the holder are covered by a layer of a transparent polymer in which luminophor is distributed. The cavity of the holder is completely filled with a transparent polymer with a flat (or almost flat) surface covered by a layer of polymer in which luminophor is distributed. The invention enables design of light-emitting diodes which emit white light with luminous efficacy of up to 120 lm/W.
EFFECT: high luminous efficacy.
5 cl, 1 dwg, 1 tbl
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