Reference light source device used for calibration of spectral luminance meter and calibration method using same

摘要

A reference light source device for calibration of a spectral radiance meter includes an integrating sphere having a radiance reference plane, which is an opening; and a plurality of first optical ports, which are formed apart from each other in an outer wall of the integrating sphere to allow light rays with equivalent wavelength characteristics to enter an interior of the integrating sphere.