Patent ID: 8269231

Claim:
A light emitting diode module, comprising: a plurality of light emitting diodes emitting lights having different wavelengths from each other, wherein the plurality of light emitting diodes includes an ultraviolet light emitting diode, a red light emitting diode, and a blue light emitting diode, at least one color sensor, a controller and a fluorescent piece covering light emitting paths of the plurality of light emitting diodes, wherein a reflection region is formed at a half peak angle of each light emitting diode, the at least one color sensor detects luminous intensities of the lights having different wavelengths reflected at the reflection region, and driving currents to the plurality of light emitting diodes are adjusted by the controller according to the luminous intensities of lights detected by the at least one color sensor; wherein a region of the fluorescent piece corresponding to the ultraviolet light emitting diode has a plurality of green fluorescent powders; and wherein an intersection region between a surface of the fluorescent piece and half peak angle light of each of the ultraviolet light emitting diode, the red light emitting diode, and the blue light emitting diode is coated with a reflection layer to form the reflection region.