The application discloses a
layout optimization method of N-color
LED packaging devices; the number of each
LED packaging device in the method is a multiple of 4, and a phased optimization strategy is adopted; in the first phase, hierarchical
layout optimization is realized through a
genetic algorithm,
light source modules are divided into lattices according to a four-quadrant symmetrical structure, a double-sequence
dynamic mapping model is established, the
layout of the N-color
LED packaging devices is decomposed into N-level progressive single-color optimization processes, and multiple groups of candidate schemes are generated with the maximum illumination uniformity as the target; in the second phase, the
color temperature of the working area is calculated through
spectral fitting, and the optimal layout scheme is screened with the minimum
color temperature standard deviation as the target. Through discrete coordinate solving, the application can reduce the calculation complexity; through the construction of the illumination uniformity and the
color temperature uniformity double evaluation indexes, the mixed light of the multi-color LED
light source module can be more uniform, the color
ghosting problem can be solved, and the illumination uniformity and the color temperature uniformity of the working surface can be improved.