LWIR Thermal Dome | Multispectral Hemispherical Dome | EO/IR Sensor Protection Felix Glass fabricates custom infrared optical domes for gimbal, UAV, airborne, marine and surveillance EO/IR systems. Material options include CVD ZnS (FLIR / HIP multispectral grade), sapphire and fused silica, with AR, DLC and AR+DLC coating available. IR Optical Dome | Hemispherical Dome | ZnS / Sapphire / Fused Silica Infrared domes are the front protective optical window for thermal and multi-sensor systems. CVD ZnS is the mainstream LWIR solution; HIP multispectral ZnS supports common-aperture visible+NIR+LWIR. Sapphire delivers extreme hardness, abrasion and water resistance for marine and subsea use. Fused silica serves UV-NIR low-temperature sensor applications. Material substrate does not equal final performance grade. Specify wavelength, environment and coating for accurate quotation. Interferometer Inspection Precision Polishing Finished Dome Detail All infrared domes are inspected for surface figure, transmission and surface quality before shipment. Hydrostatic pressure test available for subsea versions. LWIR AR coating maximizes infrared transmission for thermal cameras. Multispectral AR coating is required for visible + LWIR co-bore sight systems. DLC coating provides scratch, sand and moisture resistance for harsh field environments. AR+DLC combined coating is the premium choice for high-reliability airborne and marine domes. Learn more about infrared optical coating technology. To generate an accurate quotation within 24 hours, please prepare below information: ZnS is cost-effective for LWIR / multispectral airborne gimbals. Sapphire is harder, water-resistant and the top pick for subsea, high-abrasion and long-lifetime marine systems. AR coating improves optical transmittance; DLC improves mechanical durability and chemical resistance. AR+DLC stacks deliver both optical performance and ruggedness. Yes. We manufacture fully custom infrared domes according to your drawing, including radius, wall thickness, flange, O-ring groove and coating requirements. No fixed MOQ for prototype orders.
Custom Infrared Optical Dome Manufacturer
OEM Manufacturing | AR / DLC Coating | Custom SpecificationsMaterial & Grade Overview
Key Specifications & Custom Options
Substrate Material
CVD ZnS (FLIR / HIP Multispectral), Sapphire, Fused Silica
Shape
Hemispherical dome, plano-convex dome, partial dome, custom radius & flange
Size Range
Dia 10mm‑350mm, custom wall thickness, edge flange & O-ring groove
Surface Quality
20‑10 /40‑20 scratch‑dig, customized per customer drawing
Working Wavelength Band
8–14μm LWIR / 0.4–14μm Multispectral / UV-NIR
Coating Options
Uncoated, LWIR AR, Multispectral AR, DLC hard coating, AR+DLC combined
Custom Machining
Flange machining, O-ring groove, stepped edge, chamfer, pressure matched design
Inspection
Interferometer, spectrophotometer, pressure test option, material certificate available
Manufacturing & Inspection Evidence
Typical Application
Coating Selection Guide
Order & Quotation Requirements (Valid RFQ Checklist)
Send Drawing For Quote
FAQ Snippets
Which dome material should I choose between ZnS and sapphire?
What is the difference between AR coating and DLC coating on IR dome?
Can you custom make infrared domes from our drawing?
Related Products
- What is the minimum order quantity for custom precision optical glass components?
FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.
- Can I get free glass samples for testing before bulk order?
Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.
- What is the production lead time for custom optical glass components?
A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.
- Are your optical glass products ISO, CE and RoHS certified?
All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.
- Do you offer one-stop custom optical glass processing services?
Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.
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