Hemispherical Optical Dome | Multi-Material Sensor Protective Dome Felix Glass fabricates custom hemispherical optical domes for EO/IR payloads, underwater cameras, LiDAR, thermal imaging and aerospace sensor systems. We supply optical domes in sapphire, fused silica, CVD ZnS, each selected to match target wavelength, pressure rating and environmental exposure. AR, DLC and BBAR anti-reflection coatings are optional for optimized optical performance. Custom Optical Hemispherical Dome | Multi-Substrate Optical dome is a hemispherical optical protective component designed to preserve imaging quality while shielding internal optics from pressure, dust, water and harsh atmosphere. We offer multiple substrate grades: sapphire for subsea & high temp, fused silica for UV & laser, CVD ZnS for 8–14μm LWIR thermal imaging. Material substrate does not equal final performance grade. Operating wavelength, depth/pressure, coating and optical tolerance must be defined for accurate quotation. Interferometer Inspection Precision Polishing Finished Optical Dome All optical domes are inspected for surface figure, transmission and scratch-dig specification. Pressure and environmental testing can be arranged for subsea and aerospace programs. Single-band AR and broadband BBAR coatings improve transmission for your working spectrum. DLC coating provides hard scratch and salt-spray protection for marine and field deployment. Coating must be matched to dome substrate and wavelength range. Learn more about optical coating technology. To generate an accurate quotation within 24 hours, please prepare below information: Sapphire for subsea & high temperature; Fused silica for UV/laser; CVD ZnS for 8–14μm LWIR thermal imaging. Wavelength and environment are the top selection criteria. AR improves light transmission; DLC is a hard protective coating for abrasion and salt spray resistance. They can be combined for subsea domes depending on design. Yes. We design and machine hemispherical domes with custom radius, wall thickness, O-ring groove and flange to fit your sensor housing.
Custom Optical Dome Manufacturer
OEM Precision Machining | AR / DLC Coating | Sensor ProtectionMaterial & Grade Overview
Key Specifications & Custom Options
Available Substrates
Sapphire, Fused Silica, CVD ZnS
Shape
Hemispherical dome, partial dome, plano-convex dome, custom radius & flange
Size Range
Dia 10mm‑350mm, custom wall thickness, O-ring groove and flange profile
Surface Quality
20‑10 /40‑20 scratch‑dig, low scatter polishing for imaging
Working Wavelength Bands
UV, Vis, NIR, 8–14μm LWIR (depends on substrate)
Coating Options
Uncoated, AR, BBAR, DLC hard coating, wavelength matched anti-reflection coating
Custom Machining
Flange, O-ring groove, stepped edge, chamfer, pressure optimized dome geometry
Inspection
Interferometer, spectrophotometer, pressure test optional, material COA available
Manufacturing & Inspection Evidence
Typical Application
Coating Selection Guide
Order & Quotation Requirements (Valid RFQ Checklist)
Send Drawing For Quote
FAQ Snippets
How to choose optical dome material?
What is the difference between AR coating and DLC coating on optical dome?
Can you customize dome radius and flange interface?
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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