Focusing lenses for Relfar welding laser gun (welding mode)
A focusing lens, made out of quartz, in laser machines is a critical optical component that concentrates the collimated laser beam to a fine spot, enabling precise cutting, welding, engraving, or cleaning. the lens is coated with an Anti-reflective (AR) for fiber laser (1064nm wavelength)
It takes the parallel beam produced by a collimating lens and focuses it to a specific point.
This focus point is where the laser's energy density is the highest—ideal for material interaction (cutting, cleaning, etc.).
The spot size and depth of focus depend on the lens's focal length and beam diameter.
