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大曲率半径(几十至上百米)凹面反射镜,在激光器研制中得到较广泛的应用。本文介绍了用附加长焦距平行光管物镜法,扩大“3C”非接触式球径仪的量程来测量大曲率半径,即可减小接触式测量所带来的误差,又可兼顾自准直望远镜法测量的大量程和自准直显微镜法测量的高精度。
Large curvature radius (tens to hundreds of meters) concave mirror, in the development of the laser to be more widely used. This article describes the additional long focal length collimator objective lens method to expand the “3C” non-contact ball diameter measuring range to measure the large radius of curvature, you can reduce the error caused by contact measurement, but also take into account the self-collimation Large Range Measurement with Telescope Method and High Accuracy Measured by Self-Collimation Microscope.