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光学平面自准直法(图1)广泛应用于精密测试、安装和控制中,但找自准直象是件麻烦费劲的工作。远距离反射镜的自准直象更难找,因为要求两操作者遥相配合。有些自准光管和反射镜上增设了诸为粗瞄准管、水准器等装置,以加速自准直的实现。直角初调器、快速准直管(图2)都是专用的快速自准装置,用它们都能实现单人快速自准。但前者
The optical plane self-collimation method (Figure 1) is widely used in precision testing, installation and control, but finding self-alignment is a bothersome task. Self-collimation of long-distance mirrors is more difficult to find because of the need for teleoperation between the two operators. Some self-regulating light pipes and mirrors have been added as coarse aiming tubes and spirit level devices to accelerate self-alignment. Right angle tune-up device, fast collimator (Figure 2) are special fast self-calibration device, with them all can achieve single rapid self-regulation. But the former