OPTICAL COMPONENTS

IR Windows

Infrared transmission solutions for optical systems.

Explore optical IR windows in infrared materials and custom configurations for thermal imaging, sensing, and laser systems.

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01 / OVERVIEW

Optical IR windows for infrared applications

Optical IR windows are transmissive optical components designed to protect infrared systems while allowing infrared radiation to pass through specific wavelength ranges. Material selection is especially important for IR windows because transmission characteristics, thermal behavior, and environmental durability vary significantly between infrared materials.

Strahl Optics supports IR windows in a range of infrared materials, including germanium, silicon, barium fluoride, zinc selenide, zinc sulfide, and other suitable substrates. Window solutions are available for different infrared bands and system configurations, supporting thermal imaging, sensing, laser, and other infrared applications.

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02 / CONFIGURATION

Configure around your requirements

The table below summarizes common specifications and options for optical IR windows.

Specification Options
Material Germanium, Silicon, ZnSe, ZnS, CaF2, BaF2, Sapphire
Wavelength Range NIR, MWIR, LWIR
Dimension (mm) 5 – 300
Thickness (mm) 1 – 10
Thickness Tolerance (mm) ±0.1 – ±0.02
Surface Quality 60/40 S/D– 20/10 S/D available
Coating AR coating, DLC coating, broadband IR coating

Specifications represent typical available options. Final specifications are confirmed for each project.

03 / PRODUCTS

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04 / CUSTOM OPTICS

Need custom infrared windows for your system?

Strahl Optics supports custom IR windows based on your infrared transmission and protection requirements. Infrared window can be tailored in material selection, dimensions, thickness, surface specifications and coating options to achieve the required optical performance.

Discuss custom infrared windows
Material selectionDimensions & geometryInfrared coating requirements
05 / SELECTION GUIDE

How to choose an IR window

OPTICS RESOURCES

Which infrared materials are best suited for optical windows?

06 / CONTACT

Let’s discuss your IR windows.

Tell us about your application. We’ll review suitable configurations, recommend practical options, and confirm any additional details needed to prepare a quotation for your project.

To help us review your request, please share the following if available:

  • Drawing or product specifications
  • Operating wavelength and environmental conditions
  • Required quantity
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