High Quality Optical Tube
Focus Lens: Focus Lens parts combined crescent-shaped lens with lenticular convex lens to correct spherical aberration, and then get smaller light spot to reach concent rateenergy and sharp cutting effect.
Collimator Lens:Collimator parts change the transmission light to collimated light by washer,locking elastic ring and imported lens with the characteristic of small volumeand lower loss.
