Infrared Optical Windows
Custom Made
Global Optics supplies custom infrared optical windows manufactured exactly to customer drawings and specifications.
We support everything from one-off prototypes to production supply, with no minimum order quantity and full UK inspection prior to dispatch.
Infrared optical windows are used in systems where standard optical glass is not suitable, particularly in thermal imaging, IR sensing and analytical applications.
Typical response time: within 24–48 hours depending on specification.
All components are inspected in the UK prior to dispatch to ensure they meet specification.
What We Need to Provide a Quotation
Providing the following information allows us to quote accurately and avoid delays:
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Material (if known)
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Diameter / size
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Thickness
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Quantity
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Drawing or specification
Materials for Infrared Optical Windows
Common materials include:
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Calcium Fluoride (CaF₂)
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Zinc Selenide (ZnSe)
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Zinc Sulphide (ZnS)
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Silicon
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Germanium
Each material offers different transmission and mechanical properties depending on the application.
When to Use Infrared Optical Windows
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Thermal imaging systems
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Infrared sensing and detection
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Analytical and measurement systems
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Applications requiring transmission beyond visible wavelengths
Choosing the Right Material
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CaF₂ → wide transmission, UV to IR
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ZnSe → excellent IR transmission, thermal imaging
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ZnS → durable IR applications
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Silicon → IR systems, robust and cost-effective
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Germanium → high-performance IR optics (note: longer lead times / restriction
If unsure, send your specification and we will quote based on your requirement.
When Not to Use Infrared Optical Windows
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Visible light-only applications (BK7 or fused silica more suitable)
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High impact or abrasive environments (sapphire more suitable)
Applications
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Thermal imaging systems
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Infrared cameras
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Analytical instrumentation
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Scientific measurement systems
Custom Made to Drawing
All infrared optical windows are manufactured to customer specifications, including size, thickness, surface quality and tolerances.
We supply components strictly to drawing and support both prototype and production quantities.
Coatings Available
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Anti-reflective coatings for IR wavelengths
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Custom coating options