阳光透过鱼缸在室内墙上投射出米级亮丽彩虹  

Brilliant meter-scaled rainbow on the indoor wall cast by sunlight through the fish tank

作　　者：刘新军 LIU Xin-jun(Department of Physics,Faculty of Science,Tianjin University,Tianjin 300350,China)

机构地区：[1]天津大学理学院物理系,天津300350

出　　处：《物理实验》2022年第5期23-29,47,共8页Physics Experimentation

摘　　要：利用几何光学研究了矩形玻璃鱼缸中2种不同光路引起的色散现象,分析了光路各自的光谱特点和产生原因,推导了光线在水面、侧水面的入射角与出射角和鱼缸底面倾角之间的关系.利用计算机对墙上的彩虹进行模拟,模拟结果与实验现象一致.The dispersion phenomena caused respectively by two different light paths in a rectangular glass fish tank were studied based on geometric optics,the spectral characteristics and causes of the optical paths were analyzed.The relationship of the emitted angle and the incident angle of light on the water surface or on the lateral water surface,and the inclination angle of the bottom of the fish tank was deduced.At the same time,the meter-scaled brilliant rainbow on the indoor wall was simulated by computer,and the simulation results were consistent with the observed phenomena.

关 键 词：几何光学 三棱镜 光的色散 计算机模拟 彩虹 

分 类 号：O435.1[机械工程—光学工程]