Optical lens combined apparatus

Abstract

The invention relates to the technical field of a blood cell analysis meter and discloses a lianr composite device. The device comprises a front cover, at least two optical devices, optical frames and optical frame sleeves, the number of which are corresponding to that of the optical devices, and each optical device is fixed with one optical frame; the optical frame sleeve is provided with a cavity which is matched with the optical frame, and the optical frame is fixed by matching with the front cover by the cavity on the optical frame sleeve. Each optical device is respectively fixed on one optical frame which is matched with the cavity on the optical frame sleeve; when in assembly, the optical frames which are fixed with the optical devices are put into the cavity according to the requirements; as each optical device is fixed at the central position of the optical frame, when being put in the cavity, the optical shaft of each optical device is positioned at the same line; the devicehas simple structure and convenient assembly.

Description

technical field [0001] The invention relates to the technical field of blood cell analyzers, in particular to an optical lens combination device for blood cell analyzers. Background technique [0002] The optical lens used in the existing five types of blood cell analyzers is used for auxiliary counting of blood cells. The optical lens includes optical devices such as lenses, diaphragms, beam splitters and laser diodes. These optical devices communicate with each other through each optical device. Cooperate so that the optical axes of each optical device are on the same straight line. Although this kind of optical lens can make the optical axis of each optical device be on the same straight line, each optical device must be fixed by a corresponding frame, and then the frame is fixed on the substrate, so the volume of the optical lens is relatively large; The optical lens is fixed by the mutual cooperation between the frames with corresponding optical devices. Its structure ...

AI Technical Summary

Problems solved by technology

Although this kind of optical lens can make the optical axis of each optical device be on the same straight line, each optical device must be fixed by a corresponding frame, and then the frame is fixed on the substrate, so the volume of the optical lens is relatively large; The optical lens is fixed by the mutual cooperation between the frames with corresponding optical devices. Its structure is relatively complicated, and after the assembly is completed, each optical device needs to be repeatedly corrected to make the optical axis on the same straight line. The assembly accuracy Also limited by assembler level

Therefore, the assembly is more complicated

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