3 element long focal lens

Additional information

Description

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.

Optimal parameters:

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