Mohs 9 Surface
Single-crystal sapphire helps resist scratching from sediment, cleaning, handling and outdoor exposure.
✔ OEM / ODM Customization
✔ Free Drawing DFM Technical Review
✔ 24-Hour Professional Quotation
✔ Flexible Low MOQ & Fast Prototypes






Felix Glass Co., Limited manufactures drawing-based sapphire hemispherical domes for engineers who need a hard optical cover for ROV camera housings, aerospace sensors, military-grade observation equipment and other protected imaging assemblies. The dome is intended to protect cameras, sensors and optical paths where a flat window may not provide the required viewing geometry or environmental durability. Sapphire is selected when abrasion resistance, chemical stability and long service life are important design factors. Single-crystal sapphire helps resist scratching from sediment, cleaning, handling and outdoor exposure. AR, AF, AG or wavelength-specific coating options can be matched to the optical band and use environment. Diameter, radius, wall thickness, edge detail and inspection criteria can be reviewed before production. The primary material option is single-crystal sapphire for hard optical protection. BK7 or fused silica optical glass can also be discussed when the project needs a different balance of cost, spectral range or mechanical requirements. Use conditions should define the final geometry and coating. The same dome family can support different optical systems when the drawing, sealing structure and spectral requirements are reviewed together. For underwater camera housings where optical clarity, pressure design, sealing and abrasion resistance need to work together. For airborne optical assemblies where material stability, coating selection and dimensional review are part of the design process. For observation, inspection and monitoring systems exposed to cleaning, dust, outdoor use or repeated handling. Diameter, radius, wall thickness, optical zone and mounting edge are checked before quoting. Sapphire, BK7 or fused silica is selected according to hardness, optical band and environment. Controlled grinding and forming support the required hemispherical or spherical geometry. Optical polishing and AR, AF, AG or IR coating are planned around the application target. Finished domes are checked for dimensions, surface appearance, optical clarity and coating quality. The original product emphasizes trial orders, custom manufacturing and fast engineering communication. In practical purchasing terms, Felix Glass can review one-piece prototype feasibility, small batch orders and repeat production after receiving a drawing and application details. Quotation timing depends on geometry, coating, tolerance, quantity and inspection requirements. The dome faces abrasion, saltwater exposure, repeated cleaning, outdoor service, thermal stress or long-life optical protection requirements. The application needs general optical clarity and a different cost-performance balance without sapphire-level hardness. The optical design needs UV performance, thermal stability or a material profile better matched to the wavelength range. For a custom hemispherical dome, the inspection plan should be tied to how the part will be mounted and used. Surface appearance alone is not enough for an optical housing component. Diameter, radius, wall thickness and edge profile are checked against the drawing. The optical area is reviewed for clarity, visual defects and coating appearance. Packaging is planned to reduce handling risk for polished and coated surfaces. Yes. Diameter, radius, wall thickness, edge detail and optical zone can be reviewed from your drawing. No. Transmission depends on wavelength range, coating design, substrate thickness and inspection method. Share the optical band for review. Sapphire is commonly considered for underwater optical covers because it offers hardness, corrosion resistance and stable protection when the housing design is appropriate. Please provide drawing, material, diameter, radius, wall thickness, coating, quantity, application environment and inspection requirements. Share your application, optical band, drawing, coating target, quantity and inspection requirements. Felix Glass can review manufacturability and prepare a quotation path for your AR sapphire hemispherical dome project.AR Sapphire Hemispherical Dome for ROV, Aerospace and Optical Window Assemblies
What This Sapphire Hemispherical Dome Is Built to Do
Mohs 9 Surface
Coating Review
Drawing-Based Build
Material and Coating Choices for Engineering Evaluation
Core Specifications Retained from the Original Product
Product type AR sapphire hemispherical dome and custom optical dome window Model reference FG-OD-0010029 Material options Sapphire, BK7 optical glass or fused silica Surface performance Mohs 9 sapphire surface for scratch resistance when sapphire is selected Coating options AR, AF, AG, IR-bandpass or project-specific multilayer coating Customization Diameter, radius, wall thickness, edge profile, coating target and inspection criteria Production support One-piece prototype discussion, small batch support and OEM/ODM manufacturing Where ROV and Aerospace Teams Use Sapphire Domes

ROV and Marine Imaging

Aerospace and UAV Sensors

Defense and Industrial Optics
How Felix Glass Reviews a Custom Dome RFQ
Drawing Review
Material Selection
CNC Forming
Polishing and Coating
Inspection and Packing
Prototype and Small Batch Support
When to Choose Sapphire, BK7 or Fused Silica
Choose Sapphire When
Review BK7 When
Review Fused Silica When
Inspection Points That Matter for Optical Dome Orders
Dimensional Review
Optical Zone Review
Shipment Protection
Internal Links for Comparing Sapphire Optical Components
Questions Before Ordering an AR Sapphire Hemispherical Dome
Can the dome size and radius be customized?
Does AR coating always have the same result?
Is sapphire suitable for ROV optical windows?
What RFQ information is useful?
Send Your Dome Drawing for Practical Engineering Feedback
Send us your drawing, dimension & coating requirements for fast quotation within 24 hours.
Get Free RFQWe supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.

Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.
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?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.
All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.
Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.