OPTICAL COMPONENTS

IR Lenses

Infrared focusing solutions for optical systems.

Explore IR lenses in infrared materials and custom configurations for thermal imaging, sensing, and laser applications.

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01 / OVERVIEW

IR lenses for infrared imaging and systems

An IR lens is an optical component designed to focus and transmit infrared wavelengths for imaging and sensing systems. Compared with visible-light lenses, IR lenses use specialized infrared materials selected for their transmission characteristics, refractive properties, and thermal behavior across specific wavelength ranges.

Strahl Optics supports IR lenses in materials such as germanium and zinc selenide for different infrared bands and optical applications. Careful surface processing and optical design help maintain reliable focusing, transmission, and imaging performance in infrared systems.

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02 / CONFIGURATION

Configure around your requirements

The table below summarizes common specifications and options for IR lenses.

Specification Options
Material Germanium, Silicon, ZnSe, ZnS, CaF2, Sapphire
Wavelength Range NIR, MWIR, LWIR
Diameter (mm) 5 – 200
Dimensional Tolerance (mm) ±0.10 typical, tighter options available
Surface Quality 60/40 S/D– 40/20 S/D available
Surface Accuracy λ/4 – λ/10 @ 632.8 nm
Coating AR coating, DLC coating, broadband IR coating

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

03 / PRODUCTS

Infrared lens type

Select an infrared lens material based on material, wavelength range, transmission performance, and application requirements.

04 / CUSTOM OPTICS

Need custom infrared lenses for your system?

Strahl Optics supports custom IR lenses based on your infrared imaging and optical system requirements. Infrared lens can be tailored in material selection, optical design, dimensions, focal length, surface specifications and coating options to achieve the required imaging performance.

Discuss custom infrared lenses
Material selectionOptical design requirementsInfrared coating options
05 / SELECTION GUIDE

How to choose IR lenses

OPTICS RESOURCES

Which infrared materials are suitable for IR lenses?

06 / CONTACT

Let’s discuss your IR lenses.

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 focal length requirements
  • Required quantity
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