Dongguan Felix Glass Co., Ltd. E-mail: james@felixglass.com - Tel: +86 185 6503 2888
Home / Marine Corrosion Resistant Optical Dome | Salt Fog Proof Sapphire Dome

Marine Corrosion Resistant Optical Dome | Salt Fog Proof Sapphire Dome

marine corrosion resistant sapphire optical dome installed on underwater ROV monitoring camera

Marine Corrosion Resistant Optical Dome

Salt Fog Proof Sapphire & IR Domes for Offshore Shipboard Coastal Monitoring Systems

Marine-grade sapphire optical domes resisting salt fog & seawater erosion. Ideal for shipborne cameras, offshore platform & coastal surveillance systems. Custom AR+AF coating available.

Core Pain Points We Solve

Ordinary optical domes corrode quickly under long-term marine salt fog & seawater splash

Conventional coating fails in high humidity marine environment, causing fogging & light loss

Sea sand & marine sediment scratch dome surface during offshore vessel operation

Few suppliers supply integrated AR+anti-fog coating customized for marine surveillance

Product Key Advantages

Superior Salt Fog Corrosion Resistance

Single crystal sapphire substrate with inert chemical property, withstand long-term offshore salt spray environment without oxidation & corrosion.

Dual AR+AF Marine Special Coating

Custom anti-reflection & anti-fog composite coating, eliminate seawater fogging, maintain stable light transmittance in high humidity coastal areas.

High Hardness Anti-Scratch Surface

Mohs 9 sapphire material resists sea sand, floating debris abrasion during ship & offshore platform operation.

Wide Spectrum Surveillance Compatibility

Support visible + LWIR dual-band transmission, fit day-night coastal & shipboard thermal monitoring cameras.

Extreme Marine Temperature Adaptation

Low thermal expansion coefficient, stable optical performance under drastic sea cold & hot temperature changes.

Marine Equipment OEM Customization

Custom curvature, diameter and sealing edge design for ship monitoring, offshore platform surveillance turrets.

Engineering Specification Table

Parameter Item Custom Technical Specification
Product Type Marine Salt Fog Corrosion Resistant Surveillance Optical Dome
Core Materials High Purity Sapphire, Marine Grade ZnS Infrared Substrate
Working Spectrum Visible Light + LWIR Thermal Imaging Dual-Band Customizable
Optical Surface Quality 20/10, 40/20 MIL marine industrial precision grade
Custom Coatings Marine Special AR+AF Composite Anti-Corrosion Coating
Imaging Distortion Ultra-low distortion for long-distance coastal & ship monitoring
Processing Feature Corrosion resistant edge finishing, marine sealing chamfer, full coating customization
Application Scenarios Shipboard camera, offshore platform, coastal border surveillance, marine patrol equipment
custom flanged marine grade sapphire optical dome for offshore monitoring equipment
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Single crystal sapphire hemispherical dome, optical protective cover for underwater surveillance camera, high pressure and salt corrosion resistant

In-House Marine Optical Dome Manufacturing Capability

All marine anti-corrosion optical domes are produced in Class 100 dust-free optical workshops. We complete special marine substrate processing, anti-corrosion precision polishing, AR+AF composite vacuum coating and full salt fog resistance testing to meet offshore & ship surveillance equipment standards.

Typical Application Scenarios

  • Commercial shipboard day-night surveillance camera turret systems
  • Offshore wind power & oil platform perimeter monitoring equipment
  • Coastal border security & marine patrol thermal imaging cameras
  • Ocean rescue & maritime search reconnaissance optical systems
  • Harbor port anti-intrusion long-distance monitoring devices

Our optical engineering team provides one-stop marine anti-corrosion optical solutions, including salt fog resistant coating design, seawater adaptability optimization and sealing edge customization. Every marine dome passes salt spray aging test before delivery to guarantee long-term offshore service life.

Why Choose Our Marine Corrosion Resistant Domes

Marine Optical R&D Experience

Mature salt fog resistant coating formula for offshore harsh marine environment

Special Marine Production Line

Independent anti-corrosion coating workshop, strict salt spray aging inspection

Full Marine Customization

Custom size, edge sealing structure and dual AR+AF anti-fog coating

Salt Fog Aging Testing

100% long-term salt spray corrosion test before product delivery

Global Marine Equipment Standard

Meet international offshore ship surveillance optical component requirements

Frequently Asked Questions

Q1: How long can the sapphire dome resist marine salt fog erosion?

A: High purity single crystal sapphire is chemically inert, combined with our special marine coating, it can work stably for years under continuous coastal salt fog environment without corrosion.

Q2: What is AR+AF composite marine coating function?

A: AR layer improves light transmittance, AF anti-fog layer prevents seawater mist condensation on dome surface, guarantee clear imaging in humid sea weather.

Q3: Is plastic dome a substitute for marine sapphire dome?

A: Plastic will age, scratch and corrode quickly under sea salt & UV; sapphire is the only long-term reliable option for professional marine surveillance equipment.

Q4: Can you customize special sealing edge for marine camera housing?

A: Yes, we support customized chamfer, step edge structure to match waterproof marine camera shell sealing design.

Q5: Do you provide marine dome performance test report?

A: We can provide salt fog aging test, optical transmittance and anti-fog test official reports for your equipment certification.

Get Custom Marine Corrosion Resistant Optical Dome Solution

Submit your offshore working environment, spectrum demand and camera sealing dimension. Our marine optical engineers will provide anti-corrosion coating scheme & formal quotation within 24 hours.

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
Send an inquiry now—we'll reply promptly within 1-5 hours and provide the best formal quote within 1-2 days! Let's start building a mutually beneficial partnership…
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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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