Optical zoom microscope with continuously adjustable focal length of objective lens and eyepiece

Abstract

The invention provides an optical zoom microscope with continuously adjustable focal lengths of an objective lens and an eyepiece. The microscope consists of an adaptive zoom objective lens, an adaptive zoom eyepiece and a control system. Under the initial conditions, the control system changes the voltage applied to the adaptive zoom objective lens and the adaptive lens inside the adaptive zoom eyepiece, and adjusts the focal length of the two to a specific value. At this time, the microscope achieves low magnification; when increasing the microscope’s When magnifying, the control system continuously sends signals to the adaptive zoom objective lens to shorten the focal length, increase the magnification, and lengthen the final working distance to achieve continuous optical zoom, and the image plane will move along the optical axis in the direction of the adaptive zoom eyepiece , at the same time, the control system makes the focus of the adaptive zoom eyepiece coincide with the image plane. The variable rear working distance of the adaptive zoom objective releases the zoom capability of the adaptive lens, and the combination of the adaptive zoom eyepiece and the adaptive zoom objective enhances the zoom capability of the entire microscope.

Description

technical field [0001] The present invention relates to a microscope, more particularly, the present invention relates to an optical zoom microscope with continuously adjustable focal lengths of objective lens and eyepiece. Background technique [0002] Microscopes play a very important role in scientific research and production and life fields such as medical inspection, life science and microstructure processing. When observing objects of different sizes, such as cells, microorganisms, and microstructures, microscopes with different magnifications are often required. Traditional microscopes have different magnifications and can realize observation at different magnifications through discrete zooming. In addition to variable magnification, with the deepening of scientific research, fields such as life science have higher requirements for real-time and continuous microscope observations. However, when the traditional microscope is converted from low magnification to high m...

AI Technical Summary

Problems solved by technology

However, when observing from low magnification to high magnification, traditional microscopes often need to manually switch the objective lens and refocus, and do not have the ability of continuous optical zoom. The discrete zoom affects the continuity of observation; while continuous optical zoom The structure design of the microscope is complicated, and the magnification range is limited, which does not meet the needs of scientific research for microscopic observation

Therefore, there is still a lack of microscopes with both high magnification and continuous optical zoom.

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