Dongguan Felix Glass Co., Ltd. E-mail: james@felixglass.com - Tel: +86 185 6503 2888
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Large Customizable Sapphire/BK7 Optical Dome

Large Customizable Sapphire/BK7 Optical Dome
Large Customizable Sapphire/BK7 Optical DomeLarge Customizable Sapphire/BK7 Optical DomeLarge Customizable Sapphire/BK7 Optical DomeLarge Customizable Sapphire/BK7 Optical DomeLarge Customizable Sapphire/BK7 Optical DomeLarge Customizable Sapphire/BK7 Optical Dome
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CategoriesUnderwater Optical Dome
BrandFELIX GLASS optical glass Manufacturing base
ModelFG‑OD-0100291
MaterialSapphire / BK7 / Fused Silica / K9
Coating: AR / IR / UV / AF
Shape: Hemispherical / Spherical / Half‑Sphere
Diameter: 5mm‑300mm (Customizable)
Hardness: 9 Mohs (Sapphire)
FeatureHigh Transmittance, Pressure Resistant, Waterproof, Scratch Resistant, Low Distortion
ApplicationSurveillance Cameras, Underwater ROV, Thermal Imaging, Drones, Aerospace, Medical Devices
FOB portSHENGZHEN SHANGHAI GUANGZHOU
Terms of PaymentL/C, D/A, D/P, Western Union
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Detail Information


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

 
ParameterCapability
MaterialsSynthetic Sapphire, BK7/K9 Optical Glass
Size Range10mm – 600mm large custom diameter
Wall Thickness1mm – 25mm customized
Surface Quality60/40, 40/20, 20/10 MIL STD
Flatnessλ/2, λ/4, λ/10 @633nm
CoatingsVisible AR, IR AR, anti-fouling coating
PerformanceWaterproof, pressure & salt spray resistant
TestingInterferometer, 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 



 

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.




Need Custom Optical Glass Solution?

Send us your drawing, dimension & coating requirements for fast quotation within 24 hours.

Get Free RFQ

Custom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.

We 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.

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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James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory.James Fu, Sales Director of FELIX OPTICAL GLASS, and a poster displaying contact information for an optical glass deep-processing factory. 2
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!
*Email
Name
*Title
*Content
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  • Only supports .rar/.zip/.jpg/.png/.gif/.doc/.xls/.pdf, maximum 20MB.
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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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