Laser Pointer has to get the certification of Laser Pointer at first

 Laser Pointer has to get the certification of Laser Pointer at first.
Nobel Prize winner Richard Feynman back in the late 1950s had predicted, manufacturing technology along the way to the development of both large and small, that is a small machine with big machine, with this small machine can produce more small machines, and thus in the field of small-scale generation to create a batch processing tool. Science and technology revolution, confirmed Feynman's prediction. The emergence of microelectronics technology is the most convincing examples, from integration to large-scale integration to very large scale integration technology, the rapid development, has been shown to future manufacturing technology will follow the "smaller" the direction of the march. The 20th century, the main function of the electronic technology of highly integrated together to form a century marked the high-tech industries, and penetrate into all areas of human activity. 21st century is the multi-discipline integration.
Since 1960, the first ruby laser since the advent of lasers and laser amplifiers are developing very rapidly.
As the impact of particles from the atmosphere, but also has no loss, no interference, low cost, small size, light weight, etc., space satellite optical communication received considerable attention [5]. From the functional space laser communication system is divided into sub-systems and communications acquisition, tracking, pointing (ATP) subsystems. In addition to high-speed communication subsystem, high-power transmission and broadband high-sensitivity receiver, the communication will be a very narrow beam divergence angle of the beam emission (near the diffraction limit, typically a dozen micro-radian magnitude). This is the long-range space laser communication, light and small, high-speed communications capabilities based [6]. Space laser communication system after nearly 20 years of rapid development. System has made many breakthroughs in key technologies.
For a monochrome laser, coherence, and the parallel nature of the three major advantages of using this for material processing, the formation of a new type of processing industry - the laser industry. Space and time controlled laser controlled well, the object of processing the material, shape, size and processing environment of freedom are large, and computer numerical control technology, may constitute a highly efficient automated processing equipment.