| LASER is one of the major scientific and technological inventions in the the 20th century, it is importangt for our life,As a high-tech research results, it is not only widely used in scientific and technical research in various frontier areas, and has been in human production and many aspects of life have been a large number of applications, and laser-related industries in the world has been formed over 100 billion US dollars. Laser light is stimulated radiation, and spontaneous radiation is different light, with excellent directional, high brightness and coherence. Ordinary radiation light source in all directions, and a laser can basically along a transmission line. Despite the energy laser output limits to a certain extent, but it can be much smaller than ordinary light of the solid angle, and within a very short time the energy output, the advantages of laser it on many occasions replace ordinary light, and the latest Progress show that the high efficiency of laser illumination in the area is expected as an energy-saving light replaced by electric light ,enhances with the people living standard, because the laser background its fine display mode already more and more became one of background's important means that this article take the small laser as the beginning, the construction small laser background system.Through the laser, the scattering beam collimation system, sweep unit's improvement, realizes the background system's constitution. Main research content: Laser parameter determination, light way collimation analysis, sweeping system designCCD surface array detector law and mechanical scanning method examination method each has its strong points, collimation aspect, regardless of any reshaping methodis by cuts system's emission efficiency to take the price. Theγadjustment has the vitalrole in the scanning... |
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