LIGHT RECYCLING METHOD AND LED RECYCLING MODULE Russian patent published in 2017 - IPC F21V7/09 F21K9/00 H01L33/60 

FIELD: lighting.

SUBSTANCE: invention relates to light sources in which powerful light-emitting diodes are used as the light generating elements, and reflectors with a combination of different curvatures are used to form the light flux, which can be used to design economical illuminators for various purposes. The module contains two reflectors that have internal conjugated truncated spherical surfaces with different radii of curvature and displacement of the curvature centres from the plane in which the LED emitter is located. The displacement of the spherical surfaces centres and the radius of the spherical surface of the second reflector are chosen according to the formulas obtained from the condition of the reflected light reaching the light emitting area of the LED emitter at all angles of its radiation higher than the emission angles in the direction of the outlet edge.

EFFECT: increased luminous flux output by increasing the light recycling efficiency.

2 cl, 2 dwg