通过使用算法差异化对光学设计问题的减弱最小正方形方法对雅可比式的高效评估
Optics express
|January 29, 2025
概括
本研究介绍了一种有效的方法来计算光学系统优化中的雅可比矩阵. 它显著降低了光线追踪算法差异化的计算成本,与原始痕迹的复杂性相匹配.
科学领域:
- 光学工程的光学工程.
- 计算光学是一种计算光学.
- 数字方法 数字方法.
背景情况:
- 雅可比评估对于优化使用减弱最小平方算法的光学系统至关重要.
- 算法差异化 (AD) 提供了精确的导数,但对于光线跟踪来说,它在计算上是昂贵的.
- 射线表面交叉点的计算是光学设计的AD的主要瓶.
研究的目的:
- 开发一种计算效率高的方法,用于光学系统优化中雅可比式评估.
- 为了解决与应用AD对光线跟踪程序相关的高计算成本.
- 为了能够更快,更准确地优化复杂的光学设计.
主要方法:
- 射线-表面交叉点的数学分析,以实现高效的差异化.
- 应用前向和反向模式算法差异化到光线跟踪.
- 利用优化变量和操作数结构来降低计算复杂性.
- 推导一种方法来计算与原始光线痕迹相比较复杂的雅可比数.
主要成果:
- 开发了一个高效的数学框架来区分光线与表面的交叉点.
- 在光学系统优化中获得了雅可比计算的新方法.
- 该方法实现了与原始光线痕迹相等的计算复杂性.
- 在旋转对称和自由形光学系统上成功验证.
结论:
- 拟议的方法显著提高了光学设计中雅可比评估的效率.
- 这一进步加速了复杂光学系统的优化过程.
- 该技术适用于广泛的光学设计问题,包括自由形光学.
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