Laser Machine Widely
The laser machine is the general name of laser engraving machine, laser cutting machine and laser marking machine. The laser machine USES the working principle of its high temperature to work on the surface of the processed material, and then, according to the input to the inside of the machine, draw the design, text and so on.
The laser engraving machine can be divided into non-metal laser engraving machine, such as wooden handicraft engraving machine, stone carving machine, etc.
Metal laser engraving machine, such as carbon dioxide laser engraving machine.
With the widespread promotion of laser machine in all walks of life, more and more users benefit greatly.
Laser engraving machine is a lot of small and medium-sized handicraft processors to master and use, especially for non-metallic laser engraving machine and non-metallic marking machine in the wood, glass, bamboo bamboo tube, folk paper-cutting, shadow play, etc are widely used in the processing industry. The application of laser cutting machine to industrial production and processing, such as packaging sponge cutting, industrial foam cutting, metal sheet cutting, metal kitchen cutting, etc. With the increase of the application of laser in industry, the variety of laser machine is increasing, so there will be a lot of room for development in the future.
The laser source
Luminous common light source (such as electric light, fire and the sun shine) is due to the material under external energy (such as light, electricity, heat, etc.), will absorb the foreign energy of electrons in the atoms from low energy level transition to high level, the atoms are inspired. The process of excitation is a process of "stimulated absorption". In high energy levels, electronic life is very short (usually 8 ~ 10 seconds), and spontaneously transition to low energy levels without external action, and the light (electromagnetic wave) radiation will be generated when the transition occurs.
This radiation is called spontaneous radiation. All the atomic spontaneous emission process is a stochastic process, the light atoms emitting process independent, unrelated, that is, the radiation of light on the emission direction is no rules at all directions, not phase, polarization state also each are not identical. Since the excitation energy level has a width, the frequency of emission light is not a single one, and there is a range.
In thermal equilibrium condition, usually at a high level of atomic number density, is far less than in the low level of atomic number density, this is because in the level of the size of atomic number density with the increase of the level E index decreases, and this is the famous boltzmann distribution law. All visible, at 20 ℃, nearly all hydrogen atoms in the ground state, will make the atoms emitting, must provide the energy to the outside world make the excited atoms arrive, so ordinary generalized luminescence is contains two stimulated absorption and spontaneous emission process. Generally speaking, the energy of this source of light radiation is not strong, plus it is launched from all directions, which makes the energy more dispersed.