Glass Lens
-Diameter > 10 mm -Beam Angle: 15, 20, 30, 40, 45, 60, 70, 120 and so on -Material: Optical glass B270, Pyrex, BK7, Borosilicote glass, etc. -Coating: Single layer, multi-layer coated. UV-IR coated etc. The above information is just for your ...