FLUORESCENT ILLUMINATION, GENERATING WHITE LIGHT Russian patent published in 2011 - IPC H01L33/50 

FIELD: physics.

SUBSTANCE: light-emitting system (1), comprising a radiation source (2), capable of emitting first light with at least a first wavelength spectrum, first fluorescent material (4), capable of absorbing at least partially the first light and emit second light with a second wavelength spectrum, second fluorescent material (8) capable of absorbing at least partially the first light and emit third light with a third wavelength spectrum, in which the first (4) or the second (8) fluorescent material is a polycrystalline ceramic with density higher than 97% of the density of monocrystalline material, and the corresponding other fluorescent material is a powdered luminophor with average particle size 100 nm <d_50%<50 mcm.

EFFECT: invention enables to design an illumination system which emits white light with high colour rendering index, high efficiency, clearly defined colour temperature and good illumination quality, with correlated colour temperature, and enables regulation of the correlated colour temperature of the illumination system.

16 cl, 8 dwg