LIGHTING SYSTEM Russian patent published in 2009 - IPC G03B21/26 

FIELD: lighting.

SUBSTANCE: lighting system comprises three groups of light-emitting diodes (LED), every of which comprises the following components: single light-emitting surface and is arranged with possibility to emit diffused light of single colour; three optic concentrators, every of which has inlet surface, side surface and outlet surface and is arranged with the possibility to collect, collimate and mix colour of appropriate LED group on outlet surface; two dichroic filters made with possibility to combine colour from three groups of LED; lighted surface and relay lens arranged with the possibility to transfer light from outlet surfaces of optic concentrators, having passed dichroic filters, to lighted surface, at that inlet surface of every optic concentrator is located at the distance from light-emitting surface of appropriate LED group, dichroic filters are crossed, and relay lens is made with possibility to form images of outlet surfaces of optic concentrators in plane located at the distance of more than 0.05H from lighted surface, where H is minimum aperture of lighted surface.

EFFECT: lower weight, complexity of manufacture and size of lighting system, increased optical efficiency of system.

6 cl, 1 dwg