Vacuum Technology & Application Consultancy


VacTechniche Vacuum Optics

Fused Silica Zero Length Viewports

VacTechniche fused silica viewports are offered in CF, ISO and KF flange styles. The viewports comprise a high purity laser quality fused silica optic with precise flatness, parallelism, scratch and dig specifications.


The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges. Non-magnetic viewports are offered for low energy applications or surface science applications needing low magnetic welds. The non-magnetic viewports use a non-magnetic weld ring instead of the regular kovar weld ring. Flanges in 316L stainless steel are used for the high vacuum KF and ISO viewports.