“Can mirrors be engraved too?”
You can create beautiful designs on a mirror relatively easily. When using a Fiber laser, you engrave the mirror through the glass from above. The glass doesn’t react with the laser, so only the mirror layer is ablated. The glass itself is never scored – it can only respond to the CO2 laser source wavelength anyway.
The subsequent cleaning is easy too. This is because the material that was removed during the engraving process falls onto the table beneath the mirror, and hardly any dust is ever left on the mirror itself.
Acrylic lacquer is usually applied to the back of the mirror. This creates a positive effect; the laser-engraved areas of the glass become transparent. The colours of the lacquer remain bright and intense, peeking through the transparent glass.