KEYWORDS: Light emitting diodes, Black bodies, Light sources, Stars, Computer simulations, Integrating spheres, Device simulation, Lamps, LED lighting, Control systems
In order to meet the requirements of multi-color temperature, high precision and wide spectrum, a large number of
LED in different colors are used as internal light source for an integrating sphere. An asymmetric Gaussian function
model is established to realize non-uniform spectral peak intervals. The research aims to find the desired spectral
distribution of LED and the number in use through specific properties of the target spectrum to improve the obtained
original fitting model. Simulation of spectral curve of specific color temperature can be realized through the simulation
of standard blackbody spectral curve. The result shows that matching simulation error for small band is within 12%, and
matching error verified by relative area method is within 4.63%.
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