南京市第一中学的李天泽同学问:“如果凸透镜成像,摔掉包括光心部分会怎样?”这个问题实际上就是:透镜的一块碎片可以成像吗?要回答这个问题,我们首先要弄清楚透镜成像的原理.如图1所示,一个物点A发出光线投射到一个透镜上,经透镜后会聚于A’点,A’点即为物点A的像.我们要强调的是,在A点发出的光线 The student of Li Tianze in Nanjing’s No. 1 Middle School asked: “What if the convex lens imaged and fell, including the part of the optical center?” The question actually is: Can a piece of lens be imaged? To answer this question, we must first clarify the lens. The principle of imaging. As shown in Figure 1, an object point A emits light onto a lens and converges on point A’ after passing through the lens. A’ point is the image of point A. We want to emphasize that in A Spotlight