Acta Optica Sinica, Volume. 7, Issue 8, 738(1987)
Precision digital photo-electric centering instrument
The working principles of a digital photoelectrical centering instrument, its completed construction project, optical system, mechanical design, circuit principles and the results of testing and using of the instrument are described in this paper. This instrument can be used for centering during edging and cement, and testing centering error of lenses. We can measure deviation of spherical center with an accuracy as small as 1μm.
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ZHOU CHANGXIN. Precision digital photo-electric centering instrument[J]. Acta Optica Sinica, 1987, 7(8): 738