UV Grade, Non-Magnetic | 2.75CF | CaF-022

2.75CF Low-mu ss | UV grade | Calcium Fluoride (CaF2) UHV Viewport | 0.90 Inch View

This CaF2 UV grade extended range UHV viewport has excellent transmission from 200 nm in the ultraviolet through 10.5 microns in the infrared. It is mounted on a low mu stainless steel 1.33 inch Conflat flange and has magnetic permeability less than 1.010. For safe viewing while the primary CaF2 window is not in service it is available with a transparent 6mm thick polycarbonate safety cover.  It is also available with a protective anodized aluminum cap for greater thermal uniformity during bake-out. Both the clear safety cover and anodized aluminum protective cap mate with the SM05 Lens Tube System*.