Laser application with the development of science and technology is more and more widely used, is the most common application in: intelligent robots, intelligent household products, PM2.5 detector, sweep robot, laser rangefinder, sight, gaming devices, installed equipment, marking equipment, laser sensor, night-vision units fill light, seam sanctions cutting machine, tire line positioning, mechanical sheet metal marking, cutting machine, textile Clothing, sewing positioning, golf correction positioning, SMT positioning, stop frame, steel plate printing positioning, stone cutting marking, sawing marking, woodworking machinery marking, stone bridge cutting machine positioning, shoe machine positioning, set knotting machine, printing machine and other applications. Effectively improve the work efficiency and economic benefits. It can also be used for friends who love to make small products by themselves or for experimental teaching and product development in school educational institutions and research institutions.