High-temperature microscope objective lens

Abstract

The invention relates to a high-temperature microscope objective lens, which comprises a microscope objective lens, a spacer and an additional heat radiating device. The outer edge of the lower part of microscope objective lens is provided with an outside thread. The additional heat radiating device comprises an internal thread which is arranged at the inner edge and matches with the outer thread at the outer edge of the lower part of the microscope objective lens. The surface of the additional heat radiating device is provided with heat radiating holes. A metal fixing ring is arranged below the additional heat radiating device. The high-temperature microscope objective lens settles a defect of incapability of operating in a high-temperature state in a traditional objective lens, and simultaneously widens an application field of the high-temperature objective lens. The high-temperature microscope objective lens has advantages of: simple product structure, convenient assembling and relatively low cost.

Description

technical field [0001] The present invention relates to a new type of microscope, specifically an observation instrument capable of working under high temperature conditions (0-500°C). Background technique [0002] At present, there are many kinds of microscope objective lenses with complete functions, but their structures are all optical glass lenses glued with resin or mechanically fixed in the objective lens barrel, which are only suitable for working environments at room temperature, low temperature or below 100°C. If the temperature of the working environment is too high, problems such as chromatic aberration, aberration, and image shift will appear, which will affect the observation; it will even melt the adhesive resin and damage the objective lens. In recent years, although there are high-temperature metallographic microscopes that can withstand 1500°C, they are expensive and have narrow application fields. Contents of the invention [0003] The purpose of the pre...

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Problems solved by technology

[0002] At present, there are many kinds of microscope objective lenses with complete functions, but their structures are all optical glass lenses glued with resin or mechanically fixed in the objective lens barrel, which are only suitable for working environments at room temperature, low temperature or below 100°C

If the temperature of the working environment is too high, there will be chromatic aberration, aberration, image shift and other problems, which will affect the observation; it will even melt the adhesive resin and damage the objective lens

In recent years, although there are high-temperature metallographic microscopes that can withstand 1500°C, they are expensive and have narrow application fields

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