LED spectral distribution optimization design method and LED light source

By optimizing the phosphor ratio through spectral basis function modeling and simulated annealing algorithm, the problem of synchronizing color rendering index, color temperature control and luminous efficacy in high-end lighting was solved. This achieved synergistic optimization of high color rendering index, high-precision color temperature control and high luminous efficacy, thus improving the overall light quality of LED light sources.

CN122333964APending Publication Date: 2026-07-03FUTURE OPTICS (SHANGRAO) RES INST CO LTD +1
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Patent Information

Application Number
CN202610377283.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-26
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies struggle to simultaneously optimize high color rendering index, high-precision wide-range color temperature control, and high luminous efficacy in high-end lighting scenarios, often falling into the dilemma of the "light-color-electric-iron triangle".

Method used

An LED spectral distribution optimization design method based on spectral basis function modeling and simulated annealing algorithm is adopted. By constructing a Gaussian emission spectral function library and combining a comprehensive evaluation function of color temperature, spectral visual effect and color rendering index, the simulated annealing algorithm is used for global optimization to optimize the weight ratio of phosphor.

Benefits of technology

Achieving optimal synergy between color rendering index, color temperature accuracy, and luminous efficacy across a wide color temperature range breaks through traditional technical bottlenecks and improves the overall light quality and design efficiency of LED light sources.

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Abstract

The invention discloses an LED spectral distribution optimization design method and an LED light source. The design method comprises the following steps: S1, establishing a primary function library of a Gaussian emission spectrum function based on a fluorescent powder material; s2, defining a full-spectrum distribution function and an optimization variable of the fluorescent powder mixture; s3, constructing a comprehensive evaluation function and constraint based on the color temperature, the spectral visual effect and the color rendering index; s4, performing optimization by applying a simulated annealing algorithm, and performing global optimization on the weight vector w of the primary function by taking minimization of the comprehensive evaluation function as a target; and S5, adjusting a comprehensive evaluation function and constraints, and carrying out iterative optimization. The design method is suitable for spectrum regulation and control of the white light LED excited by the multicolor fluorescent powder, collaborative optimization of the color rendering index, the color temperature precision and the lighting effect can be achieved within the wide color temperature range, and the comprehensive light quality and the design efficiency of the LED light source are remarkably improved.
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