Patent ID: 9565735
Date: 2017-02-07
CPC Classifications: F21K,F21S,F21Y,H05B

Claim:
1. An illuminating device, comprising: a main light source; a plurality of red light sources; a plurality of blue light sources; and a plurality of green light sources; wherein the main light source is set in a middle of the illuminating device, and the red, blue and green light sources alternately surround the main light source; and wherein current applied to each the red, blue and green light sources is changeable to change color temperature of light from the main light source by mixing light of the red, blue, green light sources with the light from the main light source, the light from the main light source and the light from the red, blue and green light sources being mixed together to obtain an outgoing light of the illuminating device which has a chromaticity coordinate located at a Plank's curve on a CIE 1931 chromaticity coordinates chart, the main source comprises a first sub-main light source, a second sub-main light source, a third sub-main light source, and a fourth sub-main light source, the main light source is positioned in a middle of the illuminating device, and the first, second, third, and fourth sub-main light sources are arranged in a same plane and form a square array, and color temperatures of the first, second, third, and fourth sub-main light sources are different from each other.