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近几年,激光光源飞速发展,无论是在光的亮度上,还是在使用寿命上都有了极大地提高,激光的颜色也变得丰富起来.在物理教学中如何显示光路是光学实验的一大难点,教材中传统的方法是采用分光镜把激光变为线形光,在平面上显示光路.其缺点是无法把真实的立体光路展现出来.笔者利用新型激光光源加上一定的处理技巧就能使立体光路得以呈现,大大提高了实验效果.为获得立体光路,笔者选用了5个30 mW的红色激光模组作为光源(焦距可调),把他们固定到铝金属模具上(五孔),调整好焦距及光路,用热熔胶加以固定,如图1.配上5 V电源,便可以工作了.
In recent years, the rapid development of laser light source, both in the brightness of light, or in life have greatly increased, the color of the laser has become enriched.How to display the optical path in physics teaching is an optical experiment Difficulties, textbooks in the traditional method is to use a beam splitter into a linear laser light, the light path in the plane. The disadvantage is that the real three-dimensional light path can not be demonstrated. I use the new laser light source can be coupled with a certain amount of processing skills So that the three-dimensional optical path to be presented, greatly improving the experimental results.In order to obtain the stereoscopic optical path, the author chose five 30 mW red laser module as the light source (adjustable focal length), they are fixed to the aluminum metal mold (five holes) Adjust the focal length and optical path, with hot melt adhesive to be fixed, as shown in Figure 1. Coupled with 5 V power supply, you can work.