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US5710629A Interferometric measuring device forming a spacial interference pattern 失效
形成空间干涉图案的干涉测量装置

Interferometric measuring device forming a spacial interference pattern
摘要:
Two input beams (10, 20) of the interferometric measuring device, achieved according to the integrated optics technology, are broadened so as to form two spread flat beams creating an interference pattern (30). Two detectors (14, 15) supply two measuring signals, preferably in phase quadrature, representative of two points of the interference plane.
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