As the title indicates, laser protective lenses are utilized to deter dust and slag splashes from harming the focused lenses. These laser protective lenses are employed not only in laser cutting machines, but also deemed essential in other lasers, including laser marking, laser welding and laser engraving. It’s evident that the application market of protective lenses is quite extensive.
The cost of protective lenses on the market fluctuates from several tens of yuan to several hundred yuan, and the quality is not uniform, of course, substandard ones are not unheard of. If the lens is not chosen judiciously, it will result in substantial laser loss, frequent damage to the protective lens, and unstable product quality, leading to significant losses for the enterprise. Hence, selecting the appropriate protective lens is a crucial matter.There are three steps to selecting laser protection lenses:
1. Size matching, this is straightforward. 2. Material, based on varying laser power, considering the cost of use, you can opt for K9, quartz, in the actual application process, professional manufacturers will categorize these two types of materials into multiple grades, customers can select the corresponding specifications according to actual requirements. 3. Coating, laser anti-reflection coating, according to the use of different coating technical parameters. Although the protective lens of the laser cutting machine is a worn part, to enhance its utilization rate and reduce the production cost, the protective lens can be cleaned routinely to achieve the objective of reuse.
Precautions for daily use of laser protective lenses
1. Prior to detaching the protective lens, kindly ensure that the surrounding vicinity of the protective lens window of the cutting head is meticulously clean. Please refrain from blowing a fan on the cutting head to prevent inadvertent removal of the protective lens. As the air flow can introduce dust into the cutting head, resulting in internal contamination; 2. Kindly avoid using your bare fingers to mount the lens, it is advisable to wear powder-free finger cots or rubber/latex gloves; 3. Please refrain from touching the lens on the film or mirror. Instead, grasp the edge of the lens and gently place the lens on the lens cleaning paper. 4. We kindly request you avoid speaking over the camera and strive to keep all contaminants at bay from the working environment; 5. When cleaning the lens, we recommend operating in a dust-free environment (cleaning agents such as absolute ethanol will only dissolve dirt and will not inflict damage to the lens).
Laser Protective Lens Cleaning Procedures:
Step 1: Gentle cleaning of lenses with light pollution (dust, nits).
Exert an air bag or fresh air to blow away contaminant lenses scattered on the surface of the lenses. If this step neglects to eliminate pollution, transition to Step 2. Note: Refrain from utilizing ducts in the workshop as they frequently contain a considerable amount of oil and water. These contaminants can generate a harmful absorbent layer on the surface of the lens. Step 2: Gentle cleaning of slightly contaminated lenses (stains, fingerprints). Soak the unused specialized cotton swab with a detergent such as acetone or absolute ethanol, tenderly wipe the surface of the lens (do not rub excessively), and gradually drag the wet cotton onto the surface of the lens, ensuring that the liquid left on the wet cotton will evaporate promptly. This leaves no residue. If this step fails to remove contaminants, transition to step 3. Note: Only plain paper swabs with swab bodies (Q-tip brand swabs are preferred) or polyester swabs should be utilized. Cleaning agents such as reagent grade acetone and absolute ethanol are recommended). Step 3: For moderately contaminated laser lenses (saliva, oil), perform moderate intensity cleaning. Soak an unused cotton swab in 6% distilled white vinegar and gently wipe the surface of the lens. Eliminate any acetic acid by gently wiping the surface of the lens with a clean, dry cotton swab and gently wiping the surface of the lens with a cotton swab soaked in acetone. If this step neglects to remove the contaminant, transition to step 4. Step 4: Execute a robust cleaning of heavily contaminated (splashed) lenses Note: For new or unused lenses, step 4 laser lenses must not be utilized, only if the lenses are severely damaged during use, this step should only be employed if they are contaminated and do not yield an acceptable cleaning effect after Step 2 or Step 3, and there is no assurance that the lenses will function normally after Step 4.