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通过对LED一次透镜曲面的分析,建立了透镜表面的数学模型,经过计算得到相应的微分方程,运用龙格-库塔法计算得到透镜中心截面曲线的数据,再将此数据导入Soliworks当中得到中心曲线,之后,通过软件进行曲面扫描、镜像和缝合处理,得到相应透镜的三维模型,接着将该三维模型导入Tracepro中,并作相应的设置进行光学仿真得到所需正方形光场的图像和数据。最后,将设计好的透镜模型进行3×3的阵列设计得到最终的加强正方形均匀光场。
By analyzing the primary lens surface of LED, a mathematic model of the lens surface is established. The corresponding differential equation is obtained by calculation. The data of the center cross-section curve of the lens is obtained by using the Runge-Kutta method. The data is then imported into Soliworks to obtain the center Curve, and then the surface is scanned, mirrored and stitched by the software to obtain a three-dimensional model of the corresponding lens. The three-dimensional model is then imported into Tracepro, and the corresponding settings are obtained for optical simulation to obtain the images and data of the desired square light field. Finally, a 3 × 3 array design of the designed lens model is performed to obtain the final uniform square light field.