“影像”一词在现代生活中使用得极为频繁,如“影像”资料、医院里的B超室叫“影像科”等.“百度百科”中对“影像”的解释是人对视觉感知的物质再现.按我们平时的理解,“影”和“像”的意·思差不多.那物理上的“影”“像”到底指的什么呢,它们是否相同呢?在物理中“影”和“像”都是由于光的传播形成的.所以我们可以从它们的成因上来看一看它们是否相同. “Image ” is used very frequently in modern life, such as “image ” data, the hospital B-room called “imaging department ” and so on. “Baidu Encyclopedia ” in the “ ”The explanation is the material reproduction of the visual perception by the human.As we usually understand, “ Shadow ”and “ Like ”meaning almost the same, that the physical“ shadow ”“ like In the end, what are the same or not? In physics, ”shadow“ and ”like" are all formed by the spread of light, so we can see from their genesis whether they are the same or not.