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用投影仪检控边厚差和中心偏差的方法,解决了特别小的不可见光透镜、可见光透镜在生产过程中控制边厚差及中心偏差的验收问题。本文还介绍了投影屏上的分划形式,以及调试放大投影像进行测量的方法。
The method of controlling the side thickness difference and the center deviation with the projector solves the acceptance problem of the especially small invisible lens and the visible lens controlling the side thickness difference and the center deviation in the production process. This article also describes the division of the projection screen form, as well as debugging enlarged projection image to measure methods.