采用几何光学对三维发光体的透镜成像问题进行了研究。
The Gauss's formula in geometrical optics derived without relying on specific mechanisms such as reflection and refraction.几何光学中高斯公式的推导可以不依赖象反射和折射这些特定的基本原理。
We introduce the application of matrix method in geometrical optics by dealing spherical refraction system with matrix method.本文用矩阵处理球面折射系统光学问题来介绍矩阵方法在几何光学中的应用。