A good laser pointer can achieve many functions. With such an ergonomic design, a laser pointer has a solemn and elegant appearance. It integrates page up and down, laser pointer, and shortcut functions of the presentation, simple and practical; wireless mouse function, which can easily realize the remote control of the computer by the mouse; one-key full-screen zoom in/out function innovative design, more convenient and accurate mouse control; key markings Function (digital ink function) integrates common shortcut functions: PPT playback, exit, black screen, F5 full-screen mode and other functions; RF radio frequency remote control design, remote control distance is not less than 15 meters, no need to aim at the receiver, truly reflecting wireless freedom; powerful, The design is beautiful, especially suitable for education and training industries, and can also be selected as a gift. Various Logos can be printed. Since the invention of the world's first semiconductor laser in 1962, semiconductor lasers have undergone tremendous changes, which have greatly promoted the development of other science and technology. The low-power laser pointer itself also has the development characteristics of high integration, high speed and tunability. The development speed of large-scale high-power Laser pointer is also accelerating.
In recent years, low-power semiconductor lasers used in the field of information technology have developed extremely fast. For example, DFB and dynamic single-mode laser diodes used in optical fiber communication, visible light wavelength laser diodes, and even ultra-short pulse laser diodes that are widely used in optical disc processing, have been greatly innovative. A good laser pointer is composed of a fiber-coupled semiconductor laser module, beam combining device, laser energy transmission cable, power supply system, control system and mechanical structure, etc., and realizes laser output under the driving and monitoring of the power supply system and control system. The commonly used working materials of a good laser pointer mainly include gallium arsenide (GaAs), cadmium sulfide (CdS), indium phosphide (InP), zinc sulfide (ZnS), etc. According to different working materials, there are mainly three excitation methods: electric injection, pump and high-energy electron beam excitation.