Objective table device for rapidly focusing microscope

Abstract

The invention discloses an objective table device for rapidly focusing a microscope. The objective table device is composed of an upper objective table, a base, piezoelectric ceramic executors, a pre-tightening spring, a control unit and the like. According to the objective table device for rapidly focusing the microscope, independent or synchronization telescope movements of the three piezoelectric ceramic executors which are fixedly arranged between the upper objective table and the base are controlled to change the horizontal degree or the height of the objective table; the control unit is used for driving the radial displacement of the piezoelectric ceramic executors by adjusting current voltage, changing an inclined direction and an inclined angle of the upper objective table and ascending and descending the upper objective table. The objective table device for rapidly focusing the microscope can be used for various optical microscopes including biological microscopes, integrated type microscopes and the like and can be used as a microscope auxiliary appliance; the imaging effect of the microscope is improved and the difficulty of focusing operation is reduced. The piezoelectric ceramic executors are adopted so that the movement precision of the objective table reaches a 0.1-micron grade, a focusing speed reach an ms grade, and the change of an accurate focusing range which is more than 50 microns is easy to realize. The objective table device for rapidly focusing the microscope has the characteristics of simple structure, easiness for operation and the like; a precision, rapid and accurate focusing scheme is provided for high-magnification microscopic observation.

Description

technical field [0001] The invention relates to a rapid focusing stage device for a microscope, which is used for fast and high-precision micro-focusing assistance of an optical microscope, and belongs to a microscope function expansion device. technical background [0002] Traditional optical microscopes generally use the method of adjusting the distance between the objective lens and the sample to achieve focusing. The focusing mechanism generally adopts the focusing method of mechanical gear reduction and gear rack cooperation, which has slow focusing speed and is easily affected by gear transmission ratio and The influence of the tooth spacing, the poor control of the focusing accuracy, etc., especially for the objective microscope with a 40X or more, the precise adjustment of the focal length is a skill. In addition, under high magnification conditions, due to the small depth of the objective lens, the deviation of the verticality between the original stage of the micro...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of difficult focusing and poor repeatability during high-magnification microscopic observation, and provide a rapid focusing stage device for microscopes, through which the focusing accuracy and microscopic imaging quality can be effectively improved

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