人教社出版的初中物理第一册第六章光的折射一节，演示凸透镜成像规律的实验，是利用光具座，几个不同焦距的凸透镜片、光屏及蜡烛等一套装置来完成的。实验中学生只能在光屏上观察到蜡烛成倒立的、缩小的实像，或是倒立的、放大的实像。如果用此套装置观察人、茶杯、房屋、树 The chapter on the refraction of light in Chapter 6 of the first book of junior high school physics published by the People’s Education Society shows that the experiment of lenticular imaging law is accomplished by using an optical bench, several lenticular lenses with different focal lengths, a light screen, and candles. of. In the experiment, students can only observe the candles as inverted, reduced real images, or inverted, enlarged real images on the light screen. If you use this device to observe people, cups, houses, trees