低能激光武器对人眼光热作用的数值模拟

针对低能激光武器使用过程中对人眼作用的不确定性,建立了符合我国人眼参数的简化模型和视网膜光热作用的层状模型,充分考虑外在环境及人眼受到激光照射时本能躲闪等因素,运用matlab中的有限元法求解了不同激光照射条件下眼底的温度变化,利用生物组织的热损伤模型,确定了激光照射人眼时的功率密度限值,通过对青紫蓝灰兔眼的激光照射实验表明,实验结果与数值模拟结果基本一致。

Numerical simulation of thermal effect of low energy laser weapon on human eyes

Because of the uncertain effect of low energy laser weapons on human eye,the simplified model in accordance with human eyes parameters in our country and the layered model of retinal thermal interaction were established. Considering the external environment and human instinctive dodge factors under laser irradiation,the temperature changes of the fundus were solved by using the finite element method in MATLAB under the different laser irradiations. The threshold value of laser power density was determined based on the thermal damage model of biological tissues when the eyes are irradiated by laser. The laser irradiation experiments for purple blue and gray rabbit eyes were carried out. The results show that the experimental results are consistent with the numerical results.