相信同学们都见过照相机,很多同学可能还亲自操作过。照相机的种类很多,普通相机的基本原理是使物体发出或反射的光通过一个光学镜头使胶卷曝光成像。现在使用更多的是数码相机,它操作更方便,成像效果也好。实际上,根据小孔成像原理,即使没有光学镜头,也可以照相。下面,我们就来做一个非常简单的针孔照相机吧! I believe my classmates have seen the camera, many students may also have personally operated. Many types of cameras, the basic principle of an ordinary camera is to make the object emitted or reflected light through an optical lens so that film exposure imaging. Now use more is a digital camera, it is more convenient to operate, the imaging effect is good. In fact, according to the principle of pinhole imaging, it is possible to take pictures even without an optical lens. Now, let's make a very simple pinhole camera!