Zero length viewport 7056 glass, DN40CF

Our viewports are plane parallel windows hermetically sealed to stainless steel KF, ISO or CF flanges. Several standard material options are offered covering various common transmission ranges and applications. Optical coatings are available to enhance and optimize viewport transmission.

Sapphire viewports are available with view diameters up to 3 inches, and are bakeable to 450˚°C. Single crystal, sapphire windows, with either 0˚ or 90˚ orientation, offer excellent transmission from 250 nm to 4 microns.

Fused Silica viewport designs are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200˚°C. Several standard grades of Fused Silica windows are offered having excellent transmission from 193nm to 2 microns.

Coated Fused Silica viewports utilize optimum window and anti-reflective coating specifications to maximize performance at specific wavelengths.

Ultra-high vacuum (UHV) extended range viewports use window materials such as Zinc Selenide, Magnesium Fluoride and Calcium Fluoride. All-metal-sealed, extended-range optics are available in 1” and 2”view diameters with a combined transmission range of 120nm to 20 microns. Non-standard materials, coatings and optical specifications are offered to meet custom application requirements.