我表演干涉现象的方法就是一般的反射法。反射面就是肥皂薄膜的面,光源用没有物镜的阿洛仪。物镜用来把干涉场投在40×50平方厘米的幕上(图1)。图中 A 是阿洛仪,是薄膜,是物镜,是幕。为了使薄膜稳定,应当用高级肥皂,例如含有15—20%的水的液体肥皂,并加入几滴甘油。溶液及膜的稳定性都要在课前试验好,因为溶液的物理性质是会随时间改变的。 The way I perform the interference phenomenon is the general reflection method. Reflecting surface is the surface of the soap film, the light source with no objective lens alo meter. The objective lens was used to cast the interference field on a 40 x 50 cm square screen (Figure 1). A is the Aloe meter, a thin film, an objective lens, and a curtain. To stabilize the film, use advanced soaps, such as liquid soaps containing 15-20% water, and add a few drops of glycerin. Solution and membrane stability should be tested well before class because the physical properties of the solution will change over time.