The accuracy of laser pointer will determine the quality

The accuracy of laser pointer will determine the quality of laser pointer to some extent.
To 1863, Maxwell published his famous theory of electromagnetism, revealing light is an electromagnetic wave, when the wave theory of a problem --- the last transmission media issues have also been

solved. According to the traditional mechanical wave theory, light vibration in the elastic medium in a body vibration. As the speed of light, great, great people have to concoct an elastic medium,

but a very small density of the "ether", as the transmission medium and the scattered light in space. However, no experiments have measured less than the existence of ether, and assume that its

existence has caused a lot of trouble. Thus, the "ether" has become one big problem the wave theory, is not want to abandon the "tasteless." The customer cares about the accuracy of parameter of

laser pointer much.United States 14 million people who want to remove the tattoo, the United States every year 450,000 patients diagnosed with kidney stones, of which 1 / 3 or with endoscopic laser lithotripsy

technology, characterization of the cornea with the excimer laser to correct vision for has made more than 20,000 cases in 1995 have been approved for use by the U.S. FDA is expected in 1996 may

have 200-300 units sold in the U.S. excimer laser for the treatment of myopia, the output value of about 8000-12000 million dollars; in 1995 promotion of the CO2 laser cosmetic surgery, especially

surgery to remove wrinkles are welcome to promote the cause of these two operations in 1995 increased the income of medical lasers. The manager emphasizes the safety of laser pointer .
This method is called to remove wrinkles and then smooth the skin laser therapy, the price of each treatment in the United States from $ 800 to $ 4,500 , which estimated the market size of the skin

and then smooth up to 1.5 billion dollar, which has attracted at least eight companies for the smooth skin and then release CO2 laser laser therapy system. It is predicted that the first generation

of soft-tissue dental laser machine in the early nineties up to several thousand units sold, sales of $ 090 million, the second generation of hard-tissue dental laser machine may replace most of

the mechanical dental drill market. In early 1994, the Japanese optoelectronics industry in Japan Technology Promotion Association announced the laser - optoelectronics industry production value in

1992-1993, here only the situation in 1993.