Hard Protective Surface
Single crystal sapphire helps protect cameras, sensors and instruments from abrasion, sand, salt spray and repeated cleaning.
Sapphire Optical Dome
Custom sapphire optical dome, sapphire dome and corundum dome solutions for infrared, aerospace, underwater, surveillance and industrial optical systems. Hong Kong Felix Glass Co., Limited supports drawing-based sapphire optics, coating review, prototype orders and batch manufacturing for US-market and international B2B projects.
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Custom optical sapphire domes for ROV, aerospace and sensor protection. OEM/ODM service, 24h engineering quote by Felix Glass
Saltwater-inert sapphire viewports for deep sea ROV, AUV and subsea cameras. Pressure tested, custom anti-corrosion coatings.
MOQ:5 piece
Unit Price:US $5.21-9.66
Pressure-resistant sapphire domes for ROV underwater cameras. Single-crystal, precision polished, OEM sizes & optical coatings.
Custom optical domes in sapphire, fused silica, ZnSe,and BK7. AR/BBAR coating for underwater ROV, aerospace, EOIR and LiDAR
custom precision sapphire optical domes for defense, aerospace, deep‑sea UAV & IR surveillance.
Custom marine sapphire optical dome with superior salt fog resistance for shipboard, offshore & coastal EOIR surveillance.
Custom sapphire & infrared optical domes engineered for underwater, aerospace and thermal surveillance equipment。
MOQ:5 piece
Unit Price:US $2.88-5.99
Custom AR sapphire hemispherical dome for ROV, aerospace and defense optical window assemblies with Mohs 9 sapphire option.
MOQ:5 piece
Unit Price:US $2.88-5.99
Custom AR coated sapphire hemispherical lens for cameras, sensors, ROV, laser and aerospace optical systems.
Large custom sapphire optical dome with Mohs 9 hardness and AR/IR/UV/AF coatings for ROV, imaging and aerospace housings.
MOQ:5 piece
Unit Price:US $2.88-5.99
Custom sapphire underwater optical dome for marine cameras, ROV vision, scratch resistance, and low distortion.
Custom AR coated sapphire optical dome for CCTV camera housings, with Mohs 9 hardness and optional AR/AF/AG coating.
Custom sapphire spherical dome for EO/IR guidance, aerospace covers, hard coatings, and drawing-based tolerances.
Custom sapphire optical covers and window lids for aerospace, defense, deep-sea, EO/IR and high-temperature optical systems.
MOQ:5 piece
Unit Price:US $2.91-7.55
Custom sapphire hemispherical dome for waterproof optical covers in marine, surveillance, industrial and OEM systems.
MOQ:5 piece
Unit Price:US $2.88-5.99
OEM custom single-crystal sapphire optical dome for underwater, aerospace, laser, imaging and machine vision equipment.
MOQ:5 piece
Unit Price:US $3.33-5.57
Mohs 9 single-crystal sapphire optical dome with optional AR coating for ROV, aerospace and industrial sensor protection.
Felix Glass Co., Limited supplies sapphire optical dome and related sapphire optics for projects that need optical clarity, surface hardness, thermal stability and reliable protection in outdoor, aerospace, underwater, infrared and industrial imaging environments. Compared with ordinary optical glass, single crystal sapphire, also known as corundum, gives engineers a practical balance of Mohs 9 hardness, chemical resistance and broad optical transmission. This category is built for teams evaluating a custom sapphire dome, infrared sapphire dome, corundum dome or aerospace sapphire window with drawing-based requirements. Controlled curvature, wall thickness and polishing help maintain clear imaging through the dome surface. Sapphire optics are often specified where heat, pressure, chemicals or outdoor exposure make common glass unsuitable. Diameter, radius, wall thickness, edge form, optical zone and mounting method are checked before production planning. Material orientation, allowance and blank size are selected for the intended dome geometry. Diamond tooling is used to approach the required curvature and dimensional tolerance. The optical surface is polished to support clarity, surface quality and the specified optical path. AR, IR, AF, AG or other coating options can be matched to wavelength and service conditions. Used when the optical window must protect IR imaging or sensing hardware in a compact housing. Supports optical protection in aircraft, UAV, defense-related and high-reliability instrument designs. Designed for optical clarity with pressure, seawater and impact considerations in subsea equipment. Thickness depends on dome diameter, pressure load, mounting structure and the optical path. A drawing review is recommended before selecting final wall thickness. Visible camera systems may use AR coating, infrared systems may need wavelength-matched IR coating, and outdoor assemblies may add AF or AG functions. Prototype and small batch support can help verify mechanical fit, image quality and environmental requirements before a larger order. Cutting, grinding, polishing, coating coordination and inspection are managed for drawing-based sapphire optics projects. Dome radius, flange, edge detail and optical zone can be specified. Coating choices are reviewed against target wavelength and environment. Reports can be prepared according to order and project requirements. Industrial sapphire is single crystal aluminum oxide with a corundum crystal structure. In optical purchasing, sapphire dome and corundum dome are often used to describe the same material family. Yes, sapphire can be used in selected infrared applications. The final design should confirm wavelength range, coating, thickness and optical performance requirements. Please provide diameter, radius, wall thickness, edge form, quantity, coating, inspection standard and application environment. Yes. The team supports drawing review, prototype runs, batch production and export documentation for US and international B2B buyers. For a practical quotation, share your drawing, material requirement, coating target, tolerance, quantity and working environment. The team will review the project and respond with manufacturability feedback.
Sapphire optics category guide
Sapphire Optical Dome Solutions for Demanding Optical Systems
Evaluation priorities
Why Engineers Select a Sapphire Dome
Stable Optical Path
Harsh Environment Use
Material performance
Sapphire Optical Dome Material Characteristics
MaterialSingle crystal sapphire, Al2O3, corundum structure
HardnessMohs 9 surface hardness for scratch and wear resistance
TransmissionSuitable for UV, visible, near-infrared and selected infrared optical designs
EnvironmentHeat, corrosion, salt fog and pressure resistant when designed to specification
Drawing to shipment
Custom Sapphire Dome Manufacturing Workflow
Drawing Review
Sapphire Blank Preparation
CNC Grinding and Forming
Fine Polishing
Coating and Inspection
Application fit
Sapphire Optics for Security, Aerospace and Infrared Systems
Infrared Sapphire Dome
Aerospace Sapphire Window
Underwater Optical Dome
Specification planning
Technical Parameters for RFQ Evaluation
Geometry Hemisphere, partial dome, custom radius, custom wall thickness and edge profile Diameter Range Custom small, medium and large formats according to project drawings Surface Quality Specified according to optical zone, inspection method and application requirement Coating Options AR anti-reflective, IR matched coating, AF, AG and project-specific film design Inspection Support Dimensional, visual, optical and coating inspection support according to order requirements
Engineering challenges
Common Design Questions Before Ordering a Corundum Dome
How thick should the sapphire dome be?
Which coating should be used?
Can prototypes be made before production?
OEM capability
Manufacturing Support from Prototype to Repeat Orders
In-House Process Control
Custom Geometry
Coating Matching
Inspection Records
Related resources
Explore Related Optical Glass and Sapphire Capability Pages
Buyer FAQ
Sapphire Optical Dome FAQ
Is sapphire the same as corundum for optical dome use?
Can sapphire domes be used for infrared systems?
What information is needed for a quotation?
Does Felix Glass support US-market OEM projects?
RFQ action
Send Your Sapphire Dome Drawing for Engineering Review
Learn more from our FAQ
- 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.
CONTACT US NOW FOR A QUOTE
We will respond promptly within 1 to 5 hours and provide an optimal, formal quotation within 1 to 2 days. Partnering with us is the smartest choice—start a mutually beneficial partnership today!
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