Vickers microhardness tester infinite imaging system and binocular microhardness tester

Abstract

The invention relates to the field of hardness testers, and particularly discloses a Vickers microhardness tester infinite imaging system which sequentially comprises an amplification imaging device, an independent hardness pressure head, a converter device, a reflection device, an infinite auxiliary optical system imaging device, an observation tube device and an imaging eyepiece from bottom to top along a light path, wherein the amplification imaging device is used for amplifying an image of a to-be-tested sample, the converter device is used for conversion between the amplification imaging device and the independent hardness pressure head, the reflection device is used for changing the direction of a light path amplified by the amplification imaging device, and the infinite auxiliary optical system imaging device is used for reversing a parallel transmission light path into an imaging light path. The observation tube device is used for dividing a light path into two parts which are respectively imaged in the imaging eyepiece, so that the problems that the installation sizes of the objective lens and the eyepiece are difficult to correct during assembly and the imaging quality and effect of the system are influenced due to the fact that the mechanical tube length size of a limited imaging system of a traditional table type microhardness tester is fixed and cannot be changed are solved.

Description

technical field [0001] The invention relates to the field of hardness testers, and specifically discloses an infinity imaging system of a Vickers microhardness tester and a binocular microhardness tester. Background technique [0002] The Vickers hardness tester is a high-tech product of opto-mechanical integration. The machine is novel in shape, has good reliability, operability and intuitiveness. It is a new type of Vickers and Knoop hardness testing instrument using precision mechanical technology and photoelectric technology. . [0003] The imaging system of the traditional desktop microhardness tester is a finite optical system. Due to the standard design parameters of the microscopic system, the size from the imaging objective lens to the eyepiece is fixed and cannot be changed, otherwise the imaging quality will deteriorate or the imaging will not be possible. Therefore, a binocular observation module with a long optical path cannot be used. [0004] The finite dist...

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Problems solved by technology

[0005] In view of this, the present invention solves the problem that the size from the imaging objective lens to the eyepiece in the finite-distance imaging system of the traditional desktop microhardness tester is fixed and unchangeable, resulting in strict requirements on the size of the objective lens and the eyepiece during assembly, which affects the imaging quality of the system and To solve the problem of imaging effect, provide an infinite distance imaging system of Vickers microhardness tester and binocular microhardness tester

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