透镜光路作图问题是光学中的一个重点,也是同学们学习中的一个难点.如何正确作出透镜的光路图呢?可以从以下三个方面人手.一、根据透镜对光线的作用作图光线通过透镜后,将会向透镜厚的一侧偏折,因此凸透镜对光线有会聚作用.当一束平行于主光轴的光线穿过凸透镜时,光线交于凸透镜的焦点;凹透镜对光线有发散作用,当一束平行于主光轴的光线穿过凹透镜时,光线将远离主光轴,但它的反向延长线交 Lens optical path mapping problem is a focus of optics, but also students a difficult learning .How to correctly make the optical path of the lens? From the following three aspects of manpower. First, according to the role of light through the lens mapping light through The lens will be deflected to the side of the lens thick, so the convex lens converges on the light.When a beam of light parallel to the main optical axis passes through the convex lens, the light is at the focus of the convex lens; the concave lens has a divergent effect on the light , When a beam of light parallel to the main optical axis through the concave lens, the light will be far away from the main optical axis, but its reverse extended line to pay