Portable up-conversion fluorescence detector

Abstract

The invention relates to a portable up-conversion fluorescence detector, and belongs to the technical field of image recognition. The portable up-conversion fluorescence detector comprises an instrument main body and a replaceable sample module, wherein the instrument main body is internally provided with a main control chip, one end of the main control chip is connected with a light source module, the other end of the main control chip is connected with a detector, the main control chip is further connected with a battery, a wireless module and a USB charging module; the replaceable sample module is connected with the instrument main body through a buckle and internally provided with a sample bin, the light source module is detachably connected with one end of the sample bin through an optical fiber joint, the other end of the sample bin is detachably connected with the detector through a lens element; the replaceable sample module is provided with different sample bins and light pathsystems according to different sample types; the detector is internally provided with a convex lens and a photosensitive element and used for collecting fluorescent signals excited by the sample andimaging; and the main control chip is used for receiving the sample fluorescence signal imaging information collected by the photosensitive element, carrying out image recognition and processing and calculating the sample concentration.

Description

technical field [0001] The invention belongs to the technical field of image recognition and relates to a portable up-conversion fluorescence detector. Background technique [0002] Up-conversion luminescence technology is a nonlinear optical process. The up-conversion material excites electrons to transition to high energy levels by absorbing multiple photons, and then relaxes and transitions to each vibration level in the ground state to emit light. The luminescence frequency is up-converted relative to the incident light. Due to the use of near-infrared wavelength excitation, compared with conventional fluorescent materials, background substances do not generate up-converted fluorescent signals, which greatly improves the signal-to-noise ratio and improves the detection sensitivity. [0003] Up-conversion materials have the characteristics of high chemical stability, photostability, narrow-band emission, strong excitation light penetration, and no damage, and have good ap...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a portable up-conversion fluorescence detector to solve the problems of portability and sample diversity in the field of up-conversion fluorescence detection. Different types of samples are detected. The samples are excited by a near-infrared light source, and the optical system collects signals to form specific light spots on the detector. Through processing and extracting the wavelength and intensity distribution information of the light spots in different regions, the detection of various types of samples is achieved. The purpose of single-channel and multi-channel automatic detection

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