A structure for manual three-dimensional adjustment of optical collection lens

Abstract

The invention discloses a structure for manual three-dimensional adjustment of an optical collection lens, which includes an X-direction adjustment mechanism, a Y-direction adjustment mechanism and a Z-direction adjustment mechanism. The movement in X, Y, and Z directions is adjusted. The optical collection lens is arranged between the X-direction adjustment mechanism and the Y-direction adjustment mechanism. The optical collection lens moves synchronously with the Z-direction adjustment mechanism in the vertical direction and in the In the horizontal direction, relative to the Z-direction adjustment mechanism, it moves horizontally in the X direction or the Y direction. The invention breaks through the structure in which the three direction adjustment plates are stacked sequentially from top to bottom in the traditional scheme, moves the axis height of the installed optical lens down to the height matching other optical elements, and avoids the need to set The problem of matching the height of the axis center by the height adjustment frame simplifies the overall structural design, and through the structural design of the driving mechanism, the structural volume is effectively reduced and the occupied area is reduced.

Description

technical field [0001] The invention belongs to the technical field of life sciences and clinical diagnostic instruments, in particular to a compact structure suitable for manual three-dimensional adjustment of a large-diameter optical collection lens. Background technique [0002] In life science and clinical diagnostic instruments, such as fluorescence microscopes, flow cytometers, confocal scanners, nucleic acid sequencers, real-time fluorescence analyzers and other equipment, the principle of high-sensitivity fluorescence excitation and detection is used. In the chemical equipment, the excitation light source, such as semiconductor laser, mercury lamp or halogen lamp, etc., is usually irradiated to the surface or inside of the sample, glass slide, dish and chamber to be tested, and then the transmitted light, scattered light and fluorescent light are emitted. collection of signals. [0003] Since the content of biomolecules such as cell surface antigens to be detected a...

AI Technical Summary

Problems solved by technology

[0007] 1. The three adjustment plates are stacked together one by one, resulting in a higher base, and the position of the axis after the lens is installed is correspondingly raised, which is higher than the height of the axis of conventional optical elements. As a result, when it is used, it needs to be adjusted on all optical elements. Add a height adjustment frame, such as image 3 As shown in 102, the complexity and cost of the system will increase exponentially

[0008] 2. A high-precision thread pair 101 with a scale is used for displacement adjustment. Although the adjustment resolution is high, since the high-precision thread pair 101 protrudes from the side of the translation table, the overall space of the three-dimensional adjustment frame takes up a lot, which is not conducive to tightening Promoting use, such as inside a commercial instrument

[0009] 3. The uppermost lens holder is narrow and not suitable for fixing larger aperture lenses

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