Research on illumination uniformity in edible mushrooms incubator with genetic algorithm

The illumination uniformity of incubators used for growing edible mushrooms has an important influence on the accuracy of extracted light formula. To design a light emitting diode (LED) array with uniform illumination, we study the influence of number of LEDs, luminous half angle and the position on the two-dimensional plane by using the genetic algorithm. Numerical results show that the illumination uniformity of optimized LED array can reach up to 97%, which is superior to those of traditional rectangular, elliptical and triangular LED arrays. Finally, simulation results obtained from TracePro software verify that accuracy of numerical calculations.