Microscope optical object image infinity parfocal correction device and correction method

Abstract

The invention discloses a microscope optical objective image infinite-distance parfocal correction device and method. The correction device comprises a light path unit and a microscope observation system mounting unit, wherein the light path unit is composed of a light source, a light concentrating system, an inlet slit diaphragm, an imaging system, an outlet slit diaphragm and an optical wedge. During correction, a user can firstly mount a microscope observation system to be corrected onto the mounting unit of the microscope optical objective image infinite-distance parfocal correction device; if slit diaphragm imaging observed through an eyepiece lens is two parallel and non-coincident images, the user adjusts the position of a tube lens and enables the two parallel and non-coincident images to coincide into one image, namely, the tube lens is adjusted in place at the same time. The microscope optical objective image infinite-distance parfocal correction device can be free from a main machine and independently correct the lens group of the observation system, so that the lens group can achieve accuracy in optical tube length and optical conjugation distance and can meet parfocal requirements even when matched with objective lenses with different magnification powers.

Description

technical field [0001] The present invention relates to the infinite-distance parfocal technology of microscope optical object image, in particular to a microscope optical object image infinite-distance parfocal correction device and correction method, which are used for correction and correction of infinity optical microscope imaging system, observation system, photography and camera system The detection belongs to the technical field of microscope adjustment and detection. Background technique [0002] Usually optical microscope consists of eyepiece, lens barrel, converter, objective lens, coarse quasi-focus helix, fine quasi-focus helix, pressure clip, light hole, reflector, shutter, stage, mirror arm, mirror seat and diaphragm . In order to realize infinity optical imaging, a lens barrel is provided in the lens barrel, and the objective lens usually has 2-3 of different magnifications. [0003] The parfocality of the microscope objective lens (theoretical length of the...

AI Technical Summary

Problems solved by technology

At present, most manufacturers use outsourced or self-produced objective lenses. During the assembly process of the microscope host, the lens barrel lens in the system is adjusted individually after the objective lens is imaged. After one objective lens is adjusted, the other objective lens is adjusted. , but the other objective lens may move the position of the barrel lens after it is adjusted in place, and this may affect the objective lens that has been adjusted in place before, so it is necessary to re-calibrate the objective lens that has been adjusted in place before, and so on.

At the same time, due to the processing of the lens barrel lens, the position rotation of the lens barrel lens may affect the optical axis imaging center

At present, there is no benchmark for this calibration method, and it is completed by personal experience. The calibration is difficult and inefficient. It will cause damage to the indicators of the previous process, and it is easy to repeat the calibration of the components in the previous process. It cannot guarantee the accuracy of the comprehensive magnification of the microscope. The quality of the microscope image is reduced, and the interchangeability of the objective lens is poor, not to mention the interchangeability with the international famous brand microscope objective lens

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