METHOD AND DEVICE FOR MAGNETIC BEAD DETECTION, AND MAGNETIC BEAD DETECTION OPTICAL SYSTEM

A method and device for magnetic bead detection, and a magnetic bead detection optical system. The method comprises: using a laser to irradiate magnetic bead samples to be detected, such that magnetic beads are excited to generate fluorescence signals; illuminating the magnetic bead samples on the basis of a contour light source to generate contour optical signals of the magnetic beads; acquiring first optical image information corresponding to the fluorescence signals; acquiring second optical image information corresponding to the contour optical signals; and combining the first optical image information and the second optical image information to determine the types and concentration distribution of the magnetic beads. By means of obtaining the fluorescence signal and the contour optical signal of a sample to be detected so as to image and identify the types and concentrations of the protein, the detection of protein samples to be detected having different concentrations and types can be achieved, thereby