Patent ID: 9689555
Date: 2017-06-27
CPC Classifications: E04B,F21S,F21V,F21Y,G02B

Claim:
1. A lighting device comprising: a housing comprising a light emission window and, opposite thereto, a reflector, a planar carrier between the light emission window and the reflector, the planar carrier being light transmissive and comprising, at least on a side facing the reflector, a grid of a plurality of light sources, the plurality of light sources comprising a first group of first light sources and a second group of second light sources, wherein each of the first light sources has a respective first emission orientation in a respective first direction away from the reflector, and each of the second light sources has a respective second emission orientation to issue light towards the reflector, wherein the light issued from the second light sources, after reflection by the reflector, is redirected substantially into the respective first direction; wherein the light emission window has openings with a first end on the side facing the reflector and a second end on a side of the planar carrier facing away from the reflector, each of the first light sources being located at a respective one of the openings.