LIGHT EMITTING DIODE LIGHTING DEVICE WITH IMPROVED LIGHT DISTRIBUTION Russian patent published in 2017 - IPC F21K99/00 

FIELD: lighting.

SUBSTANCE: invention relates to lighting engineering. Lighting device or LED lamp (10) comprises first and second LED assemblies (30, 32). Each light-emitting diode assembly (30, 32) contains at least one light-emitting diode element (34a, 34b, 34c, 36a, 36b, 36c) with LED chip (40) and holder (38) with a flat surface to support LED chip (40). Light-emitting diode chip (40) emits light with the main optical direction. First and second LED assemblies (30, 32) are arranged relative to each other so, that at least first light-emitting diode element (34a) from first light-emitting diode assembly (30) and second light-emitting diode element (36a) from second light-emitting diode assembly (32) enter into turning angle (γ) between their appropriate flat surfaces relative to rotation axis (A), to include a light angle between the first and the second main optical directions. Rotation axis (A) is parallel to the plane of the flat surface of at least one light-emitting diode element (36a). First and second LED assemblies (30, 32) are shifted relative to each other in parallel to the above said rotation axis (A).

EFFECT: technical result is improved distribution and reduced dimensions.

4 cl, 17 dwg