光学仪器中,平面反射镜系的调整是较困难的,现介绍一种直观调校法,该方法实质是用激光束来体现平面系的光轴。具体做法是: 用普通的氦氖激光管代替仪器灯泡照明光路,在每个平面镜的反射面正中央,点上一点白色的广告色(用来给激光束定位),然后依次调整各个反射镜。最后,当细激光束能够射到每个反射镜的正中央时,则整个系统就调好了。例如,中国计量院计量标准仪器厂生产的等厚干涉仪的光学系统(见图)。调整时,由 Optical instruments, the plane mirror system is more difficult to adjust, now introduce a visual adjustment method, the method is essentially to use the laser beam to reflect the optical axis of the plane. This is done by replacing the instrument light path with an ordinary helium-neon laser tube. At the center of the reflective surface of each mirror, point a little white advertising color (used to position the laser beam) and adjust the mirrors one by one. Finally, when the fine laser beam can hit the center of each mirror, the entire system is adjusted. For example, China Metrology Metrology standard instrument factory production of isometric interferometer optical system (see photo). Adjust