A zero length viewport has a thickness no larger than that of its mounting flange. It provides a wide angle viewing window for your vacuum chamber as there are no tubulation walls to restrict observation. Manufactured using high purity fused silica quartz.
Fused silica viewports are offered in CF Flange styles. The viewports comprise of high purity laser quality fused silica opticf with precise flatness, parallelism, scratch and dig specifications. The ultra high vacuum (UHV) CF versions are offered using high grade 304L stainless steel flanges.
