The cleaning should be done in a delicate manner, enough to clean oil drops and dirt, but not
too strong to avoid damaging the lens coating.
m
NB: You should not use lens wipes, that are advertised for cleaning reading glasses and
microscopes. These typically have water content (around 30%) and often have additional
additives that can adversely interact with the lens coating. This results in smudges on and/or
damage to the lens coating.
NB2: You should also not use anything that is advertised as rubbing alcohol (it is typically ~70%
IPA and 30% water). Water may leave marks on the lens after drying so an anhydrous
(water-free) isopropyl alcohol (IPA) is the best for it.
Highly-Reflective Materials
Whenever you laser engrave a highly reflective material, you should tilt the material
slightly, introducing a small angle, e.g. 7°. This makes sure you do not have an issue
with the back-reflection to the laser diode and ensures the longevity of your laser head.
To Previous Page