Study of Spectrum Modeling, Optical and Colorimetric Properties of Blue Laser Diodes-Based Phosphor Converted White Light

We reported the development of spectrum modeling for white light generation which is contributed by blue and yellow light emission bands. Blue light originates from blue laser diodes while yellow light is converted from yellow phosphor under blue light excitation. Mathematical modeling for the spectrum of generated white light is developed from Gaussian functions. The emission spectra for white light combined with blue and yellow light at different Blue and yellow light ratios are studied. The colorimetric and photometric values of the white light spectrum are calculated based on the color science and photometry theories. The spectrum modeling is applied to study the color and optical properties of different CCTs from 3609 K to 7671 K. The parameters include Output luminous flux, correlated color temperature, chromaticity coordinates, and Duv. These are defined to provide a recipe to make the white light with the highest quality possible according to the reference standard (e.g. ANSI).