Multidimensional adjustable optical image moving device

Abstract

This invention relates to one optical displacement device to realize multi-dimension adjusting controlled by machine, which comprises base socket, lens socket, referent lens inside, hanging arm, acting joint axis and the three same displacement device, wherein, each displacement device is composed of screw area, locking structure and piezoelectricity ceramics; the ceramics is fixed on the case with one end contact to the v shape groove of the lens socket and steel ball; the case can slide inside the groove; the screw bar is located with locking structure on the base socket.

Description

technical field [0001] The invention relates to an optical phase, and is a multi-dimensional adjustable optical phase shifting device, in particular an optical phase shifting device with multi-dimensional coarse adjustment and fine adjustment. Background technique [0002] Since the 1970s, the phase-shifting interferometry technology has been greatly developed, and has been widely used in various modern interferometers with its excellent test accuracy, and has become an effective method for optical high-precision metrology testing. The phase-shifting device is the main part of the phase-shifting interferometer, and the phase of the wave front is changed through its displacement change, and the displacement adjustment error is one of the main factors affecting the accuracy of the interferometer's wavefront restoration. Piezoelectric ceramics (electrostrictive micro-displacers) are widely used in phase-shifting interference devices because of their high micro-displacement prec...

AI Technical Summary

Problems solved by technology

Obviously, the above-mentioned single adjustable degree of freedom design cannot meet such use requirements

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