Parfocalization mechanism for ocular lens of operating microscope

Abstract

The invention discloses a parfocalization mechanism for an ocular lens of an operating microscope, and the mechanism comprises a platform. The upper part of the platform is provided with a collimator,and the collimator comprises a body. The interior of the upper part of the body is provided with a beam splitter prism, and the body is provided with a light source module beside the beam splitter prism. The interior of the body is provided with a light source dividing plate at a light outgoing place of the light source module. The body is provided with an upper dividing plate and an observationocular lens above the beam splitter prism. The central part of the body is provided with a movable seat, which can be adjusted up and down, below the beam splitter prism. The movable seat is providedwith a gluing lens. The lower part of the platform is provided with an interface module for the installation of the ocular lens, and the interface module comprises a hollow pedestal. The pedestal is provided with an ocular lens positioning plane. The lower part of an ocular lens interface plane is provided with a magnetic absorbing ring. The pedestal is provided with a first horizontal rotating shaft in a passing-through manner. A part, located in the pedestal, of the first horizontal rotating shaft is sleeved by a first eccentric wheel. The interior of the pedestal is provided with a positioning seat, and the upper surface of the positioning seat is provided with a reflecting mirror plane. The distance from the reflecting mirror plane to the upper surface of the pedestal is a zero-degreeposition of the ocular lens.

Description

Technical field [0001] The invention relates to an eyepiece parfocal mechanism of an operating microscope. Background technique [0002] The eyepiece is a component of the microscope and other visual optical instruments, and its main function is to re-enlarge the real image obtained by the objective lens. In order to eliminate aberrations, the eyepiece is usually composed of several lenses, with a larger field of view and magnification. After the microscope eyepiece is assembled, you need to adjust the diopter of the eyepiece to meet the requirements, and then mark the 0-position diopter so that the subsequent diopter adjustment ring can be aligned to the 0-position when it is installed. When adjusting the diopter of the eyepiece, the parfocal fixture of the eyepiece directly affects the adjustment accuracy, so it has higher requirements for the treatment. Commonly used parfocal mechanism, the installation and fixation of the eyepiece is cumbersome, and the adjustment is comple...

AI Technical Summary

Problems solved by technology

For the commonly used parfocal mechanism, the installation and fixing of the eyepiece is cumbersome, and after the adjustment, it is necessary to grab the eyepiece forcefully when removing it, which is not only very inconvenient, but also easy to cause the adjusted eyepiece to rotate, causing the 0 mark to deviate, and then The installation of the follow-up diopter adjustment ring is not accurate enough, which affects the accuracy requirements of the product

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