LED LAMP WITH IMPROVED QUALITY OF LIGHT

摘要

PROBLEM TO BE SOLVED: To provide an LED lamp as a base of an LED which has improved light quality emitted by light flux while intensifying the light flux.SOLUTION: An LED lamp emit more than 500 lm and more than 2% of power in spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm. Chromaticity in which a high-whiteness reference sample illuminated by the light source is at least 2 Duv points and at most 12 Duv points away from the chromaticity of a white point of the light source, and the chromaticity is substantially shifted toward the blue direction of a color space.