DEVICE, MODULE, AND LIGHTING APPARATUS OF VARIABLE COLOR LIGHT EMITTING DIODE

摘要

PROBLEM TO BE SOLVED: To obtain a variable color light emitting diode device capable of changing color temperature by only varying one parameter and making the adjustment to bring the radiation close to blackbody radiation unnecessary wherein only two kinds of LED chips and thus two systems of wiring/control circuits are used.

SOLUTION: In the variable color light emitting diode device a monochromatic light emitting portion consisting of an LED for monochromatically emitting light, and a white light emitting portion including another LED chip, are so wired and arranged that their respective light emissions can independently be controlled.

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