Carbon dioxide lenses have uses in low-power marking and engraving
Economy carbon dioxide (CO2) engraving lenses are 0.75 in. diameter with 2.00 in. focal lengths, which are drop-in field replacements, offered in plain or mounted versions. They are available from stock with overnight delivery for use in low-power engraving and marking lasers. A Premium line has coatings to 10.6 µm.
Laser Research Optics
Providence, RI