Large Customizable Sapphire/BK7 Optical Dome
group nameUnderwater Optical Dome
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Min Order5 piece
brand nameFELIX GLASS optical glass Manufacturing base
modelFG‑OD-0100291
payment methodL/C, D/A, D/P, Western Union
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update timeTue, 14 Jul 2026 16:19:20 GMT
Paramtents
Material Sapphire / BK7 / Fused Silica / K9
Coating : AR / IR / UV / AF
Shape : Hemispherical / Spherical / Half‑Sphere
Diameter : 5mm‑300mm (Customizable)
Hardness : 9 Mohs (Sapphire)
Feature High Transmittance, Pressure Resistant, Waterproof, Scratch Resistant, Low Distortion
Application Surveillance Cameras, Underwater ROV, Thermal Imaging, Drones, Aerospace, Medical Devices
Packging & Delivery
Size50cm x50cm x30cm
Weight0.5kg / piece
Min Order5 piece
Briefing
Custom sapphire/BK7 optical dome, high transmittance & pressure-resistant for surveillance/ROV. OEM supported.
Detailed
Large Customizable Sapphire / BK7 Optical Dome | Waterproof Pressure Resistant Optical Protective Dome
Custom Optical Dome Manufacturer
Felix Glass supplies large customizable sapphire & BK7 optical domes for surveillance cameras and thermal imaging systems. Our range covers large sapphire optical dome, BK7 optical dome, AR coated optical dome, waterproof pressure-resistant dome, surveillance camera sapphire cover and thermal imaging optical dome. Full in-house forming, polishing and AR coating available, from single prototype to mass delivery.
✅ ISO 9001 Certified
✅ 19+ Years Optical Manufacturing
✅ Custom Size, Curvature & AR Coatings
✅ MOQ 1 Prototype
✅ Fast Global Delivery
Optical Dome Types
Large Sapphire Optical Dome
Ultra-large hemispherical sapphire dome, Mohs 9 scratch-proof for outdoor surveillance.
BK7 Optical Dome
Cost-effective high-uniformity dome for indoor visible camera monitoring.
AR Coated Optical Dome
Anti-reflection coating to eliminate glare, boost thermal & visible imaging clarity.
Waterproof Pressure-Resistant Dome
Thick-wall sealed dome for underwater, high-humidity and deep detection equipment.
Surveillance Camera Sapphire Cover
Special thin-wall sapphire housing for PTZ cameras, anti-corrosion & abrasion resistant.
Thermal Imaging Optical Dome
Wide IR transmission dome matching long-wave infrared thermal sensors.
Technical Specifications
| Parameter | Capability |
|---|---|
| Materials | Synthetic Sapphire, BK7/K9 Optical Glass |
| Size Range | 10mm – 600mm large custom diameter |
| Wall Thickness | 1mm – 25mm customized |
| Surface Quality | 60/40, 40/20, 20/10 MIL STD |
| Flatness | λ/2, λ/4, λ/10 @633nm |
| Coatings | Visible AR, IR AR, anti-fouling coating |
| Performance | Waterproof, pressure & salt spray resistant |
| Testing | Interferometer, spectrophotometer, pressure test chamber |
Material Selection Guide
Sapphire Optical Dome
Best for outdoor surveillance, underwater & corrosive environments
Advantages: Mohs 9 hardness, scratch-proof, waterproof, pressure-resistant, wide spectrum transmission
BK7 Optical Dome
Best for indoor visible monitoring, low-cost industrial imaging
Advantages: High visible transmittance, stable uniformity, cost-efficient for mass orders
Manufacturing Capability
Full closed-loop in-house production:
CNC Cutting → Curvature Forming → Precision Polishing → AR Vacuum Coating → Sealing Treatment → Full Optical Inspection
Stable optical, waterproof and pressure resistance performance for long-term field operation.
Application Solutions
Outdoor Surveillance Camera
Problem: Scratches, water fog and reflection blur monitoring footage
Solution: AR coated large sapphire optical dome, scratch-proof & low reflectance for 24h clear imaging
Underwater Detection Equipment
Problem: Water pressure & penetration damage internal thermal sensors
Solution: Waterproof pressure-resistant dome with thick sapphire substrate & reliable sealing
Thermal Imaging Detection System
Problem: Surface reflection causes infrared signal loss
Solution: Custom IR AR coated optical dome to maximize infrared transmittance
Indoor Mass Monitoring Projects
Problem: High material cost limits large-scale deployment
Solution: Economical BK7 optical dome with stable optical performance
Project Cases
Coastal Marine Surveillance Project
Custom large sapphire optical dome for PTZ cameras, salt-spray & waterproof stable operation in coastal humid environment.
Factory Thermal Imaging Monitoring Project
AR coated BK7 optical dome eliminates surface glare, improves definition of industrial temperature detection cameras.
Quality Control & Testing Equipment
100% full inspection before shipment with professional test instruments:
- Laser Interferometer: Verify surface flatness & distortion
- Spectrophotometer: Test AR coating transmittance
- Pressure & Waterproof Test Chamber: Validate sealing pressure resistance
- Salt Spray Tester: Simulate coastal corrosive working conditions
Third-party SGS test reports available for OEM surveillance projects.
Why Choose Felix Glass
- 19+ years large optical dome manufacturing experience
- Complete sapphire/BK7 forming, polishing and vacuum AR coating lines
- Support ultra-large dome diameter up to 600mm
- Custom waterproof & pressure-resistant structural design
- Flexible prototype sampling & stable bulk supply for global surveillance brands
- ISO9001 factory direct pricing without middlemen
FAQ
1.What’s the difference between sapphire dome and BK7 dome?
Sapphire is ultra-hard, waterproof and pressure-resistant for harsh outdoor/underwater scenes; BK7 is cost-effective for indoor visible surveillance.
2.Can you produce large sapphire optical dome?
Yes, custom diameter from 10mm to 600mm, support oversized surveillance camera sapphire cover.
3.What’s the function of AR coated optical dome?
AR coating reduces surface light reflection, improves transmittance for visible and thermal imaging equipment.
4..Is the dome waterproof and pressure resistant?
Our waterproof pressure-resistant dome adopts thick-wall substrate + sealed edge design, fit for underwater and high-humidity scenarios.
5.Do you offer custom coating and curvature?
We customize dome curvature, thickness and AR coating for visible light and infrared thermal systems.
6.Can I get prototype samples for testing?
Yes, MOQ 1 piece for surveillance camera project qualification test.
Related Products
Link: Optical Prism – Precision prisms for beam steering, image rotation, and optical path correction.
Link: Optical Lens – Spherical and aspherical precision focusing lenses for various optical systems.
Link: Optical Filter – Custom wavelength spectral filters for precision optical detection and analysis.
Request a Custom Quote
Send your dome drawings, dimensions, material specifications, coating requirements, and application details.
Our optical engineering team will provide a custom solution and official factory quotation within 24 hours.
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- 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