Heating generated from laser can absorb dirtto contaminate the surface of optical lens. Dust, oil vapour, water vapour, splashing of materials during cutting and engraving, fingerprints and so on can also contaminate the optical lens. It will decrease the transmittance of laser lens, cause laser process power drop and lens damage.
Keep the lens away from potential contamination sources and clean it regularly is very important. In general conditions, everyoperator shall check the optics in external laser path before changing shifts to predict possible contamination or damage.
Laser lens cleaning precautions:
1. Always wear rubber/latex finger cots or gloves when operating laser lens. Dirt and oil stains on the skin can seriously contaminate the laser lens and greatly degrade its performance.
2. Do not use any tools to operate optical lens, including tweezers.
3. Out of protecting the lens, the lens should be placed on the wiping paper or cotton.
4. Do not place optical lens on hard or rough surfaces. The surface of optical lens can easily be scratched.
5. Do not clean or touch the exposed gold or copper surface.
6. Keep in mind that all the laser lens components are fragile.
Laser Lens cleaning steps:
1. Take off the laser lens with a finger cot.
2. Blow the debris scattered on the surface of the laser lens with an air bag and place it on a clean and soft cotton cloth.
3. Use clean degreased cotton balls and soak them in acetone before wiping the laser lens surface.
4. Wash the lens with acetone, then hold the corner of the wiping paper and place the paper on the lens. Drag the paper slowly to remove the residual acetone, then dry the surface of the lens.
5. Heavily polluted metal based lens can be cleaned with a minimum polishing agents to ensure the removal of diet at first. Then use the above series methods for cleaning.
6. Finally, carefully inspect the surface of the optical lens under intense light. Repeat the steps if there are residual contaminants.
* Since there are many challenges to cleaning optical lens with mounted frames, it is recommended that you only use the cleaning procedures above steps on the uninstalled optical lens.
