Best Custom Vacuum Viewports for Precision Optical Applications

Vacuum Viewports

In industries where performance under extreme vacuum and temperature conditions is non-negotiable, vacuum windows—also known as hermetic windows, high vacuum viewports, or hermetically sealed viewports—are essential components. These specialized hermetic products serve as transparent barriers that maintain airtight seals while allowing optical, laser, or infrared transmission in vacuum systems.

Engineered for High Vacuum Precision

Custom vacuum viewports play a critical role in maintaining system integrity in high-stakes applications such as defense optics, space instrumentation, medical endoscopy, and laser designation. These components must meet demanding specifications for both optical clarity and hermetic sealing. Complete Hermetics stands at the forefront of this technology, offering precision-engineered high vacuum viewports that are manufactured to meet or exceed MIL-PRF-13830 standards.

Advanced Materials and Construction

To deliver reliability across harsh environments, Complete Hermetics provides hermetic windows in a variety of customizable materials:

  • Window Options: Sapphire, Fused Silica, Glass, Magnesium Fluoride, Zinc Selenide
  • Flange Materials: Stainless Steel (CF, NW), Kovar, Titanium, Aluminum

These materials are selected based on application-specific requirements such as thermal expansion, optical transmission range, and chemical resistance. All assemblies are leak-tested to a stringent <1×10⁻⁹ Atm·cc/sec HE rate and operate across an impressive thermal range from -100°C to 450°C.

Tailored to Your Specifications

From aerospace-grade sapphire windows to magnesium fluoride lenses for UV systems, each hermetically sealed viewport is custom-built in nearly any shape or size to integrate seamlessly with your platform. Whether you require circular, rectangular, or complex geometry, Complete Hermetics delivers solutions that ensure maximum performance and longevity.

Partner with Complete Hermetics

When precision matters most, trust Complete Hermetics for your custom vacuum viewports and hermetic product needs. Contact us today to discuss your application and experience the unmatched quality of our vacuum windows, laser-grade optics, and hermetically sealed viewports engineered to perform under pressure.