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在透镜制造过程中,定中心是必不可少的环节。定中心是使光轴和机械轴(或定位轴)重合的过程。根据精度要求和传统工艺习惯采用不同的定心方法,诸如:机械法、象点法、透射法及反射法。本文根据成象原理讨论后两种方法。一、定义在我国光学仪器制造工业中,大多数工厂至今仍沿用中心偏差这个定义,即透镜的光轴和机械轴不重合的数值,以两轴平移量
In the lens manufacturing process, the center is an essential part. The center is the optical axis and the mechanical axis (or positioning axis) coincide process. According to the accuracy requirements and traditional craftsmanship using different centering methods, such as: mechanical method, the image point method, transmission method and reflection method. This article discusses the latter two methods based on imaging principles. First, the definition In the optical equipment manufacturing industry in China, most factories still use the definition of center deviation, that is, the optical axis of the lens and the mechanical axis do not coincide with the value of two-axis translation