LIGHT SOURCE, SOLID STATE LIGHT EMITTING ELEMENT MODULE, FLUORESCENT MODULE, LIGHT ORIENTATION ELEMENT MODULE, ILLUMINATION DEVICE, IMAGE DISPLAY DEVICE, AND LIGHT SOURCE ADJUSTMENT METHOD

摘要

It is possible to irradiate a desired irradiation surface with light of a uniform color having a high color rendering with a high light emission efficiency. In order to achieve this object, a light source has a plurality of primary light sources for emitting primary lights of different wavelengths. The maximum value of the difference between CIE chromaticity coordinates of the primary lights is set to 0.05 or above so that the primary lights have the same orientation characteristics on the desired irradiation surface. The light emission efficiency is set to 301 m/W or above and the average color rendering evaluation number is set to 60 or above.