Lens of the laser wavelength absorption increase will cause uneven heating leads to reflection lens mold repair laser marking machine, refractive index changes, the laser wavelength through or reflected from the high absorption of the laser power of the lens so that the lens center uneven distribution of temperature high edge, low temperature, to produce the lens effect of this change, said optically. Due to the high absorption of lead pollution caused by the lens thermal lensing produces many problems. Lens substrate irreversible thermal stress, when the beam propagation power loss generated by the lens, the focusing spot position of partial movement, the plated layer and so can lead to premature failure of the destruction of the lens. For lenses exposed to the air, when we do the clean-up, clean-up lenses often do not follow the requirements and considerations, casually drawn laser marking machine, the result will cause new pollution even scratch the lens, causing irreparable damage . So based on years of experience that: no matter what kind of optical lenses clean is the most important, a good cleaning habits to carefully clean the lens, you can reduce or eliminate related to pollution caused by man-made causes. Such as fingerprints and saliva flowers. As a common sense when operating a hand to the optical system, regardless of the cleaning, demolition, installation should bring finger or medical gloves, to always keep the lenses clean follow the requirements and precautions laser marking machine processing will take sparks Smoke phenomenon laser marking machine for processing in the process, sometimes the product marking surface sparks smoke phenomenon, which has been marking the product's effect on the surface of the product is too large, the product has caused too much power marking, and product marking effect either rough or has damaged the surface of the effects of the use of laser marking requirements are relatively high mobile phone sets of laser marking machine maintenance, if you want to ensure the perfect effect of the product, the user must be familiar with grasp marking machine for power conditioning, as well as materials for different surface materials absorb laser proficiency! Eliminate the phenomenon of spark, then laser marking machine sparking what is it? One laser marking machine types: thermal processing! 1, is generally the most commonly used laser thermal laser machining, works by thermal energy marking of chemical products or physical action, thus completing the laser marking identification purposes. 2, the product of the nature of different materials, different substances to determine the absorption rate of the laser is also a great difference. 3, there is a laser spot mode sparkle phenomenon also has some links. 4. Focus adjustment: positive focus, defocus (defocus divided into positive and negative defocus) the marking fruit have different effects. 5, marking speed and power can make some adjustments, using marking effect was even more perfect. Phone sets of laser marking machine maintenance, laser marking machine, laser provided by small family Dongguan Laser Equipment Co., a small family. Dongguan City, a small family Laser Equipment Co. (www.laser6000.com) strong, credible, in Dongguan, Guangdong and other welding equipment and equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead a small family of laser and you hand into the brilliant, for a better future!