LIGHT- EMITTING APPARATUS, LED ILLUMINATION, LED LIGHT-EMITTING APPARATUS, AND METHOD OF CONTROLLING LIGHT-EMITTING APPARATUS

摘要

A light emitting apparatus has at least two light-emitting diodes having chromaticities different from each other and light-emitting-apparatus control means for controlling the chromaticity of the light outputted from the light-emitting apparatus to a desired one. The light-emitting-diode control means controls the light emitting diodes in accordance with a predetermined function for a temperature change of the light emitting diodes. Thereby, it is possible to obtain a light-emitting apparatus having a stable desired chromaticity not changed even if temperature changes. Moreover, by performing control in accordance with a characteristic function for the fluctuation of wavelength due to a temperature change of the light-emitting diodes, a high-reliability desired chromaticity can be obtained with a high reproducibility.