Excitation light source is used to excite fluorescent substances to emit fluorescence, so as to study related shells according to fluorescence information. It is often used in the fluorescence excitation research of biological fluorescent proteins such as green fluorescent protein (GFP) and red fluorescent protein (RFP) in the laboratory ... Hong Ying has been focusing on excitation light sources for more than 65,438+00 years, including portable handheld, flashlight, single violet light source, blue light excitation light source and integrated excitation light source, and constantly develops new light sources to meet different needs.