Laser is another major invention of mankind after nuclear energy, computer and semiconductor since the 20th century. It is called “the fastest knife”, “the most accurate ruler” and “the brightest light”. The English name Light Amplification by Stimulated Emission of Radiation means “light amplification by stimulated emission”. The full English name of the laser has fully expressed the main process of manufacturing the laser. The principle of laser light was discovered by the famous Jewish physicist Albert Einstein as early as 1916.
The light emitted by the atomic stimulated emission, hence the name “laser”: the electrons in the atom absorb energy and then jump from a low energy level to a high energy level, and then fall back from a high energy level to a low energy level, the released energy is released in the form of photons. The photon beam (laser) that is induced (excited) has highly consistent optical properties of photons. Therefore, compared with ordinary light sources, the laser has better monochromaticity, better directionality and higher brightness.
Lasers are widely used in laser marking, laser welding, laser cutting, optical fiber communication, laser ranging, laser radar, laser weapons, laser discs, laser vision correction, laser beauty, laser scanning, laser mosquito killer, LIF non-destructive testing technology, etc. Laser systems can be divided into continuous wave lasers and pulsed lasers.
How to solve the problem of laser marking machine?
1. Whether the laser resonator changes; Fine tune the resonator lens. Make the output light spot best;
2. The acoustooptic crystal is offset or the output energy of acoustooptic power supply is low; Adjust the position of acoustooptic crystal or increase the working current of acoustooptic power supply;
3. The laser entering the galvanometer deviates from the center: adjust the laser;
4. If the current is adjusted to about 20a and the sensitivity is still not strong enough: the krypton lamp is aging, replace it with a new lamp.
How to process Laptop —— laser cutting technology of structural parts 2022-08-23
Laptop is indispensable in our daily work and study, but how is it processed?Many of its structural parts are actually completed by laser processing. Laptop - rear cover cooling hole Such as: heat dissipation holes, speaker holes, and other types of…
How to correctly use the laser and carry out daily maintenance (I) 2022-08-09
1.How to turn on the laser correctly （1）Turn on the air conditioning switch of the laser half an hour in advance to dehumidify the interior of the laser and ensure that the temperature and humidity of the machine meet the requirements before use. （2）After dehumidif…
Application of blue laser welding technology in welding of high anti metal materials 2022-08-02
High power fiber lasers are suitable for the processing of steel with an absorption rate of more than 50%. However, due to the fact that high antimetallic materials will reflect 90% or more of the near-infrared laser radiation incident on their surfaces, they are limited, especi…
Why do laser protective glasses have so many colors? 2022-07-27
For many practitioners in the laser industry, they are absolutely familiar with laser protective glasses, but for many people, their understanding of laser protective glasses is not deep, and most of them are limited to using whichever one is required for any occasion according …