我用安装电线的塑料薄槽板自制了光的干涉、衍射实验器，还能观察圆孔衍射现象。现介绍如下。１器材制作ａ．截取安装电线的塑料薄槽板约１０ｃｍ长一段（塑料槽板为２ｍ一根，一根可做２０套）。ｂ．将盖板从母槽板中抽出，用裁纸闸刀（或锋利剪刀）将其一分为二，记为ａ... I used a thin slotted plastic plate with a wire to make a light interference and diffraction tester, and also observed the phenomenon of circular hole diffraction. The introduction is as follows. 1 equipment production a. The plastic thin slotted plate that intercepts the installation wire is about 10cm long (2m plastic slotted plate and 20 sets for one). b. Pull the cover plate out of the mother slot plate and divide it into two with a cutting knife (or sharp scissors), denoted as a...