Custom Infrared Optical Dome Manufacturer
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
OEM Manufacturing | AR / DLC Coating | Custom Specifications
|
Material & Grade Overview
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.
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
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.
Typical Application
- UAV gimbal thermal imaging payloads & common-aperture multi-sensor systems
- Airborne, vehicle mounted, ground surveillance EO/IR turrets
- Marine, underwater ROV and subsea optical sensor protection
- Rugged defense, industrial monitoring and outdoor thermal camera housings
Coating Selection Guide
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.
Order & Quotation Requirements (Valid RFQ Checklist)
To generate an accurate quotation within 24 hours, please prepare below information:
- 2D/3D engineering drawing (PDF / STEP / IGES preferred)
- Base material: ZnS / Sapphire / Fused Silica, grade requirement
- Working wavelength, dome radius, wall thickness, flange & O-ring specs
- Coating specification and environmental rating (depth, pressure, weather)
- Quantity: prototype sample / pilot batch / mass‑production volume
Send Drawing For Quote
FAQ Snippets
Which dome material should I choose between ZnS and sapphire?
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.
What is the difference between AR coating and DLC coating on IR dome?
AR coating improves optical transmittance; DLC improves mechanical durability and chemical resistance. AR+DLC stacks deliver both optical performance and ruggedness.
Can you custom make infrared domes from our drawing?
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.
Related Products