采用几何光学分析法, 对影响光度测量的杂散光进行分析; 根据杂散光反射传输的特点, 结合近似绝对黑体结构理论和吸光度加和理论, 设计了具有高折反效果的凹型窄光阑阵列消杂模型, 提高了对杂散光的抑制能力; 由于此结构在不同光阑间隔下的消光效果不同, 设计了自适应惯性权重粒子群算法来搜索光阑阵列的最优间隔, 以进一步提高光阑阵列的性能.在此基础上, 通过仿真和实验验证了基于最优消杂模型构建的分布光度测量系统, 其测量误差与消杂之前相比由10%以上降低到了1%以下; 满足相应的国际及国家标准对光源测量的误差要求, 可作为现有环境下进一步抑制环境杂散光的有效手段.

The stray light affecting photometric measurement was analyzed by using geometrical optics analysis method. According to the characteristics of stray light reflection transmission, a concave narrow aperture array model with high refraction and reflection effect was designed by combining the approximate absolute blackbody structure theory and absorbance summation theory, so as to improve the ability of stray light suppression. Due to the different extinction effect of this structure under different aperture spacing, an adaptive inertial weight particle swarm optimization algorithm was designed to search for the optimal aperture spacing, so as to further improve the performance of the aperture array. On the basis of the above, the distributed photometric system based on the optimal suppression model was verified by simulation and experiment. The results show that measurement error of system from more than 10% to less than 1% compared with before. The system satisfies the corresponding international and national standards for the error requirements of light source measurement. It can be used as an effective means to further suppress environmental stray light in the existing environment.