小孔成像的实验探究

Experimental investigation on pinhole imaging

由树荫下地面上的许多圆形和非圆形光斑提出了5个光学探究问题,利用废旧的食品筒,制作了小孔成像仪,并将学生分5个小组进行了实验探究.通过猜想假设、设计实验、收集数据、分析论证,分别得出相应的结论,总结出小孔成像的条件和5个特点,同时对实验中的4个意外发现进行分析与归纳,还指出了进行实验观察时必须注意的3个环节.

Five optical exploring problems were presented about the different shapes of light spots in the shade of trees.In order to find the answers,students made a pinhole imaging device using junk materials.Through hypothesis making,experiment deigning and data collecting and analyzing,the condition and five characters of pinhole imaging were summarized.At the same time,four rules found by chance were analyzed and concluded,and three matters needing attention were point out.