In essence, the laser light are electromagnetic waves with the ordinary, 30 million meters per second velocity, the laser has a unique physical properties of the four, and thus achieved its superb marking ability. Now, we work together to explore, laser marking machine why so much skill.
First, laser marking machine laser emission color of the most simple.
    Sunlight and light seem white, but by a prism, you can see red, orange, yellow, green, blue, green, purple seven colors of light. The color alone is not simply a beam of light, in fact, depends on its wavelength are the same. Common a color of light, contains a range of different wavelengths of light, the laser wavelength is very consistent, a beam of light in the wavelength difference is only one ten-millionth of Egypt, and even smaller, is a highly monochromatic good light.
Given laser wavelength of the laser depends on the active substance, he incurs the laser stimulation can produce the kind of material. Stimulation can produce deep pink ruby ​​laser beam, can be used in medical applications such as for skin treatment and surgery. Recognized as one of the most expensive gas to produce blue-green argon laser beam, has many uses, such as laser printing, in the microscopic eye surgery is also essential. Semiconductor laser generated infrared light can be issued, which our eyes can not see, but the energy just to "read" CD can be applied to optical fiber communication.
Second, the direction is excellent.
    The so-called good or bad direction, refers to the concentration of light. Usually we open the interior lights, the whole room is illuminated, it is because the lights seen scattering in all directions, like the cinema Afterwards people to go in different directions like a different pace. Another example is the flashlight, the light emitted at the site, but 3 cm -5 cm in diameter, to be extended to reach all parts of a few meters away on a large aperture, indicating a divergence in the spread of light. They can control the laser, so that light energy in space and time can be highly concentrated, as always in the dissemination of a straight thin line, the angle of divergence is extremely small, laser beam may reach 38 million kilometers on the moon than the , the aperture diameter is only 2 km or so at best. Like cinema Afterwards, we lined up in one direction walked the same steps as the "December a" password, to shoot straight forward.