LIGHT EMITTING DEVICE, LIGHT SOURCE BASED ON LIGHT-EMITTING DIODE FOR PLANT CULTIVATION AND PLANT FACTORY Russian patent published in 2016 - IPC F21S8/04 H01L33/50 A01G7/00 

FIELD: physics.

SUBSTANCE: LED light source (10) formed on a substrate includes a blue LED chip (2) which has the emission peak in the range from 400 nm to 480 nm which corresponds to the blue light region absorption peak of chlorophyll; the red phosphor (7b) which emits, upon receiving excitation light from the blue LED chip (2), light having the peak wavelength in the range from 620 nm to 700 nm which corresponds to the red light region absorption peak of chlorophyll; and the resin layer (7) in which the red phosphor 7b is dispersed and which covers the blue LED chip (2).

EFFECT: enabling the control of the ratio between the amount of light in the blue and red spectral regions.

13 cl, 1 tbl, 12 dwg