Mohs 9 Surface
Single crystal sapphire helps resist abrasion from sand, cleaning, handling and outdoor service conditions.
Custom Sapphire Optical Dome | Mohs 9 Hardness AR Coated Single Crystal Sapphire Cover
- FOB Price
US $5.575 - 10 piece
US $5.1111 - 100 piece
US $4.32101 - 500 piece
US $3.99501 - 1000 piece
US $3.331001 - 5000 piece
- group name
- Sapphire Optical Dome
- Min Order
- 5 piece
- brand name
- FELIX GLASS optical glass Manufacturing base
- model
- FG-SAPPHIRE-002
- Nearest port for product export
- Shenzhen, Guangzhou
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES
- Acceptable payment methods
- T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Westem Union, Cash, Escrow
- update time
- Mon, 27 Jul 2026 09:59:51 GMT
Paramtents
Material: Synthetic Single-Crystal Sapphire (BK7/K9 optical glass available as secondary custom option)
Optional Functional Coating AR anti-reflective, AF anti-fingerprint, AG anti-glare multi-layer
Optical Performance ≥99% light transmittance with AR coating, zero optical distortion
Surface Performance Mohs 9 ultra-hard scratch resistant, impact resistant, weather resistant
MOQ Support Small batch & 1-piece prototype sampling available
Manufacturing Service OEM / ODM full sapphire dome customization
Quality Inspection 100% full optical, impact & dimensional inspection before shipment
Packging & Delivery
- 14cm x8cm x9cm
-
Min Order5 piece
Briefing
Mohs 9 single-crystal sapphire optical dome with optional AR coating for ROV, aerospace and industrial sensor protection.
Detailed
Custom sapphire dome for demanding optical housings
Custom Sapphire Optical Dome for Harsh Environment Imaging
Felix Glass Co., Limited manufactures custom sapphire optical dome components for engineers who need a hard, clear and chemically stable protective cover for cameras, sensors, ROV equipment, aerospace assemblies and industrial optical systems.
Direct answer
What This Mohs 9 Sapphire Cover Is Designed to Solve
A sapphire optical dome is selected when a flat window or standard glass cover does not provide enough scratch resistance, pressure durability, heat stability or optical protection. The dome shape helps protect the optical path while supporting wide-angle viewing or compact sensor enclosure designs.
Clear Optical Path
Polishing and optional AR coating are matched to the required visible, NIR or selected IR use case.
Drawing-Based Build
Diameter, radius, wall thickness, edge detail, coating and inspection criteria can be reviewed before production.
Attention to specification
Material and Coating Details for Engineering Review
The standard material is synthetic single-crystal sapphire, also known as Al2O3 corundum. BK7 or K9 optical glass can be discussed as a secondary custom option when the project does not require sapphire hardness.
- Material: Synthetic single crystal sapphire for hard optical protection.
- Hardness: Mohs 9 surface hardness for scratch and wear resistance.
- Coating: AR anti-reflective, AF anti-fingerprint and AG anti-glare options can be reviewed.
- Service: OEM and ODM customization for small batch sampling or repeat production.
Interest stage
Key Product Specifications for a Custom Sapphire Dome
| Product type | Custom sapphire optical dome, hemispherical or project-specific spherical cover |
|---|---|
| Model reference | FG-SAPPHIRE-002 |
| Material | Synthetic single-crystal sapphire; BK7/K9 optical glass available as a secondary custom option |
| Functional coating | AR, AF, AG and project-specific multilayer coating by optical band and use environment |
| Manufacturing support | Custom diameter, radius, wall thickness, edge form, polish level and inspection requirements |
| Inspection focus | Dimensional check, surface appearance, optical clarity and coating review before shipment |
Application match
Where AR Coated Sapphire Domes Are Commonly Used
Use conditions should define the final dome size, coating and inspection standard. The same material family can serve different environments when the geometry and coating are specified correctly.
ROV and Marine Cameras
For subsea imaging, pressure, corrosion, sealing and optical clarity must be considered together.
Aerospace and EO/IR Sensors
For airborne or defense-related equipment, drawings often define material, coating and inspection requirements.
Industrial Vision Equipment
For inspection cameras and monitoring systems, sapphire helps protect exposed optics from abrasion and cleaning.
Desire stage
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How Felix Glass Reviews a Sapphire Optical Dome RFQ
Drawing Review
Diameter, radius, wall thickness, flange or edge form, optical zone and mounting method are checked.
Material Planning
Sapphire blank size, machining allowance and coating route are planned according to the application.
Grinding and Polishing
Diamond tooling and controlled polishing are used to form the dome and improve optical clarity.
Coating Review
AR, AF, AG or other coatings are selected by wavelength range, cleaning method and service environment.
Inspection and Packing
Finished parts are checked for dimensions, surface quality, coating appearance and shipment protection.
Original capability retained
Custom Options from Prototype Sampling to Batch Orders
The original listing supports small custom orders and larger-volume production. For a practical quotation, send your dome drawing, target quantity, material requirement, coating request, tolerance, surface quality, working environment and any inspection standard.
Sample timing and bulk delivery depend on geometry, coating and inspection requirements. For simple projects, Felix Glass can review feasibility quickly; for complex optical assemblies, engineering discussion helps avoid overbuilding the part.
Decision support
When to Choose Sapphire Instead of Standard Optical Glass
Choose Sapphire When
The cover faces abrasion, repeated cleaning, salt fog, heat, pressure, outdoor exposure or long-service optical protection requirements.
Review BK7 or K9 When
The part needs optical clarity but does not require sapphire hardness or severe environment resistance.
Confirm Coating When
The optical system has a defined wavelength band, reflection target, fingerprint exposure or glare concern.
Related sapphire optical components
Internal Links for Faster Product Comparison
Buyer FAQ
Questions Before Ordering a Mohs 9 Sapphire Optical Dome
Can the dome diameter and radius be customized?
Yes. The part can be reviewed by drawing for diameter, spherical radius, wall thickness, edge detail and optical zone.
Does AR coating always reach the same transmittance?
No. Transmission depends on wavelength range, coating design, material thickness and inspection method. Share the optical band for review.
Is sapphire suitable for underwater ROV cameras?
Sapphire is often selected for underwater optical covers because it offers hardness, corrosion resistance and stable optical protection when the housing design is correct.
What information helps speed up a quotation?
Please provide drawing, material, size, radius, thickness, coating, quantity, application environment and inspection requirements.
Action stage
Send Your Sapphire Dome Drawing for Practical Engineering Feedback
Share the application, drawing, coating target and quantity. Felix Glass can review manufacturability, inspection points and quotation details for your custom sapphire optical dome project.