光学中的傍轴理论——关于几何光学光路计算的几点讨论

Near Axis Theory in Optics——A Discussion of Optical Path Calculation in Geometrical Optics

现代光学已表明,光具有波动性,也具有粒子性.一个实际的光学系统的成像质量将受到衍射的限制,在几何光学中研究光线的传播是具有近似性的.根据几何光学中的傍轴理论,对光线通过光学系统的成像的实验与理论计算进行探讨,从而得出几何光学中光路计算的可行性结论.

The physical optics shows that light has both wave and particle characteristic. The quality of an image in a real optical system will be limited by diffraction. In the geometrical optics, the research of light propagation is only approximate. In the light of the near axis theory in geometrical optics,this paper discusses the imagery experiment and theory calculation when light goes through an optical system. It gets a feasible conclusion of optical path calculation in geometrical optics.