FIELD: lighting.
SUBSTANCE: lighting unit includes a blue light source, a green light source and two red light sources. The first red light source comprises of the first red luminescent material capable of delivering red light with a broad-banded spectral distribution of light. The second red light source comprises of the second red luminescent material capable of delivering red light with a spectral distribution of light containing one or more red emission lines.
EFFECT: expansion of the colour palette of the emitted light.
15 cl, 16 dwg, 6 tbl
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