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Large Custom Sapphire Optical Dome | Oversize Single Crystal Sapphire Spherical Cover

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Categories	Sapphire Optical Dome
Brand	FELIX GLASS optical glass Manufacturing base
Model	FG‑OD-0100291
Material	Synthetic Single-Crystal Sapphire (BK7/K9 optical glass available as secondary custom option)
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
FOB port	SHENGZHEN SHANGHAI GUANGZHOU
Terms of Payment	L/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

Link: [ Request Quote ] | [ Send Drawing ]

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 Window – High-transmittance flat or curved optical protective glass for laser and imaging systems.

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.

Link: Sapphire Optical Components – High-hardness sapphire windows, lenses, and prisms for extreme durability.

Link: Optical Quartz Grades JGS1 JGS2 JGS3 – Spectral Performance & Application Guide

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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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

Send an inquiry now—we will respond promptly within 1–24 hours and provide our best formal quote within 1–2 days! Let’s start a mutually beneficial partnership today...

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Learn more from our FAQ

What is your MOQ for custom optical glass and display glass parts?: 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.

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?: 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.

Are your optical glass products ISO, CE and RoHS certified?: 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.

Do you offer one-stop custom optical glass processing services?: 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.