20*90mm 405nm80MW laboratory laser module collimated beam 405nm 80MW laser module 20*90mm laser module for laboratory 405nm 80MW laboratory laser module Inquiry Send Email
3mm diameter 3.2mm focal length aspheric lens 0.37mm numerical aperture optical glass aspherical lens
Spot diameter 0.8mm divergence angle 30 degrees powell prism 9mm diameter Powell lenses optical prism factory custom