LIGHTING DEVICE Russian patent published in 2017 - IPC G02B27/09 G02B27/48 F21L2/00 

FIELD: lighting.

SUBSTANCE: lighting device contains an array of light sources emitting light cones with edges that intersect in the intersection plane and a lens unit for homogenizing the intensity of distribution in the far field. The array of light sources and the lens unit are arranged so that either the radiation cones intersect the lens unit and the distance between the array of light sources and the lens unit deviates from the sum or difference between the focal length of the lens unit and the distance between the intersection plane and the array (2) of the light sources (3) by 20 percent or less.

EFFECT: ensuring uniformity of intensity distribution in the far field.

13 cl, 6 dwg