3 element long focal lens with high focal depth.
An efficient lens for engraving and cutting.
It has a high focal depth allowing to remain in focus.
Focal tolerance +-10 mm.
An efficient lens for 405-445 nm diode lasers.
It has the best focal depth which allows cutting thick materials including wood, plywood, and foam.
Focal range – 49.4 mm (2″)
Focal beam spot ~ 0.156 х 0.046 mm
Optical transmission for 445 nm wavelength = 82%
Using a 3 element lens with an air nozzle ver 2.0 extended