A Portable Up-Conversion Fluorescence Detector

Abstract

The invention relates to a portable up-conversion fluorescence detector, which belongs to the technical field of image recognition, and includes an instrument body and a replaceable sample module. The instrument body is provided with a main control chip, one end of which is connected to a light source module, and the other end is connected to a detector. The control chip is also connected with a battery, a wireless module and a USB charging module; the replaceable sample module is connected to the main body of the instrument through a buckle, and there is a sample compartment inside. The light source module is detachably connected to one end of the sample compartment through an optical fiber connector, and the other end It is detachably connected to the detector through the lens element; the replaceable sample module is equipped with different sample chambers and optical path systems according to different sample types; the detector includes a convex lens and a photosensitive element for collecting and imaging the fluorescent signal excited by the sample ; The main control chip is used to receive the imaging information of the sample fluorescent signal collected by the photosensitive element, perform image recognition and processing, and calculate 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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