LIGHT-EMITTING DEVICE Russian patent published in 2010 - IPC H01L33/50 H01L33/58 

FIELD: physics.

SUBSTANCE: light-emitting device having a solid-phase light source (3), at least one conversion element (4) and a light-scattering element (6), where the solid-phase light source (3) is provided for transmitting a first (511) portion of primary radiation, which must fall on the light-scattering element (6), and a second (512) portion of primary radiation which must fall on conversion element (4) for at least partial conversion into at least one secondary (521, 522) radiation, where the light-scattering element (6) is provided for generating mixed radiation (5) having a Lambert light distribution pattern, corresponding to the first (511) portion of the primary radiation, secondary (521, 522) radiation and a portion of the second (512) portion of primary radiation which was not converted in the conversion element (4). The first (511) portion of the primary radiation comes out of the light-emitting device without passing through the conversion element (4).

EFFECT: invention enables design of a light-emitting device having Lambert light distribution, which is characterised by high luminous efficiency.

12 cl, 7 dwg