157nm VUV Grade | MgF-011

1.33CF 304 ss | 157nm VUV Grade | Magnesium Fluoride (MgF2) UHV Viewport | 0.40 Inch View

This magnesium fluoride extended range UHV viewport is of 157nm VUV grade and has excellent transmission from 118nm in the UV through 8.5 microns in the infrared. The standard UHV mount is a 1.33 inch Conflat flange made of 304 stainless steel. The threaded mount mates with safety cover and protective cap using the SM05 Lens Tube System*. A transparent 6mm thick polycarbonate protective cover is available for safe viewing while the primary MgF2 window is not in service. It may also be purchased with a protective anodized aluminum cap for greater thermal uniformity during bake-out.