In the general power output laser, all lenses are mostly due to the manufacturing process or by external pollution and other factors leading to the lens to a specific laser wavelength absorption, and over time make the lens life shortened, because of the damage of the lens and the impact of the use or even stop the situation occurs from time to time.
The thermal lens effect caused by high absorption of lens due to pollution can cause many problems.The irreversible thermal stress of the lens substrate, the power loss generated when the beam propagates through the lens, the offset movement of the focal point position, and the premature damage of the coating layer can all lead to the damage of the lens.When cleaning lenses exposed to air, they often do not follow the requirements and matters needing attention for lens cleaning. If they are randomly selected, they will cause new pollution or even scratch the lenses, causing irreparable losses.No matter which kind of optical lens is the most important to keep clean, good cleaning habits to carefully clean the lens, you can reduce or remove the pollution caused by man-made reasons.
When operating the optical system by hand, no matter cleaning, disassembling or installing, you should wear a finger cover or medical gloves. You should always follow the requirements and precautions of cleaning the lens. During the cleaning process, only specified materials, such as lens wiping paper, cotton swab and reagent grade ethanol, should be used.Shortcuts to cleaning, disassembling, and installing any lens can result in shortened lens life or even permanent damage.Therefore, to use common sense to prevent the lens by other causes of pollution, such as exposure to moisture, smoke, dust, and so on.After certain lens is polluted, should blow lens with ear ball of wash ear, until its surface does not have particle had better, do not blow with the mouth absolutely.A special cotton swab must be dipped into laboratory grade acetone and gently wiped with ethanol.This removes most of the contaminated thin layers.If we can keep the lens clean regularly, it will prolong the service life of the whole machine.
