9X30mm940nm100mW laser module internal focus dot laser module 940nm100mW laser module 940nm dot laser module 100mw laser module customized Inquiry Send Email
RGB dichroic mirror reflects red transmits blue reflects 650nm reflects 532nm transmits 473nm optical filters
Spot diameter 0.8mm divergence angle 30 degrees powell prism 9mm diameter Powell lenses optical prism factory custom