Free electron laser is called the fourth generation of light source, can provide from far infrared to X-ray band of high-intensity coherent radiation, in physics, chemistry, materials science, life sciences and other fields with unpreced...

Traditional home projectors are used bulb light source, which is very familiar to everyone. But now the laser light source is very popular. So for home projectors. In the end the laser pointer light source is good or traditional light bu...