How do you focus regular light to make it a laser beam?
Par un écrivain mystérieux
Description
Features:Cu copper reflector mirror with good optics characteristics is widely used for CO2 laser engrave machine. Dielectric film reflector is a new
CO2 Laser Cutter Focus Focal Lens Laser Beam Combiner Lens Diameter 20mm 25mm for CO2 Laser Engraving Cutting Machine to Adjust Light Path and Make
Beam waist, explained by RP; focus, laser beam
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