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几何光学在高中物理中占有重要位置, 教学过程中不少人由于某些认识上的偏差而形成了一些误区.表现在一些相近概念分辩不清,一些说法不严谨.现举数例逐一进行分析,希望对走出这些误区能有所裨益. 一、视场与观察范围 1.概念辩析 视场:指人眼(位置固定不动)通过光学系统所能观察到的物体的空间范围.换言之,物体空间哪个范围的物体发出或反射的光能通过光学系统进入人眼,这个“范围的物体”就是视场,视场是光斑,而不是像.
Geometry optics occupies an important position in the high school physics. Many people in the teaching process have formed some misunderstandings due to some deviations in their understanding. The performance of some similar concepts is unclear, and some arguments are not rigorous. Several cases are analyzed one by one. , I hope to benefit from these misunderstandings. First, the field of view and the scope of observations 1. The concept of analysis of the field of view: refers to the human eye (fixed position) through the optical system can observe the spatial scope of the object. In other words, The range of objects in the range of objects emitted or reflected light energy into the human eye through the optical system, this “range of objects” is the field of view, the field of view is a spot, not like.