Core Pain Points of Marine Optical Surveillance Systems
Ordinary optical domes suffer rapid corrosion and oxidation under long-term salt fog and seawater splash conditions
Traditional optical coatings fail in high-humidity marine climates, causing fogging, light loss and blurred imaging
Sea sand and floating sediments easily scratch low-hardness dome surfaces during offshore vessel operations
Few suppliers provide integrated AR+anti-fog customized coating solutions specifically for marine surveillance scenarios
Product Key Advantages
Superior Salt Fog & Seawater Corrosion Resistance
Adopts chemically inert single-crystal sapphire substrate with stable physical and chemical properties. It resists oxidation, salt spray erosion and seawater corrosion, maintaining long-term stable service performance in harsh offshore and coastal environments.
Custom Marine-Grade AR+AF Composite Coating
Equipped with exclusive anti-reflection and anti-fog dual composite coating. It effectively eliminates water mist condensation on the dome surface, improves spectral transmittance, and ensures clear and stable imaging in high-humidity marine weather.
Mohs 9 Ultra-High Hardness Anti-Scratch Surface
The high-purity sapphire material reaches Mohs 9 hardness, perfectly resisting abrasion from sea sand, floating debris and marine sediments, avoiding surface scratches that affect imaging quality during ship navigation and offshore operations.
Visible + LWIR Dual-Band Compatibility
Supports synchronous visible light day monitoring and long-wave infrared thermal imaging. It perfectly matches marine EOIR dual-spectrum turret systems to realize 24-hour all-weather offshore surveillance and reconnaissance.
Extreme Marine Temperature Adaptability
Low thermal expansion coefficient and excellent thermal shock resistance. The optical performance remains consistent under drastic temperature changes of sea cold and heat, avoiding imaging distortion caused by thermal deformation.
Professional Marine Customization Service
Supports personalized customization of dome curvature, diameter, wall thickness and sealing chamfer. Provides exclusive structural and coating solutions for shipborne monitoring, offshore platform and coastal surveillance equipment.
Technical Specification Parameters
| Parameter Item | Custom Technical Specification |
|---|---|
| Product Type | Marine Salt Fog Corrosion Resistant EOIR Surveillance Optical Dome |
| Main Materials | High Purity Single Crystal 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 Ultra-Precision Grade |
| Custom Coating | Marine Special AR+AF Anti-Reflection & Anti-Fog Composite Coating |
| Imaging Performance | Ultra-low distortion, high transmittance for long-distance marine monitoring |
| Processing Features | Anti-corrosion edge finishing, marine sealing chamfer, full spectral coating customization |
| Application Fields | Shipboard cameras, offshore platforms, coastal border patrol, marine rescue & maritime monitoring equipment |
Professional Marine Optical Dome Manufacturing Strength
All marine anti-corrosion optical domes are independently produced in Class 100 dust-free optical workshops. We implement full-process professional processing including special marine substrate selection, anti-corrosion precision polishing, marine-specific vacuum composite coating and strict salt fog aging testing.
Typical Application Scenarios
- Commercial shipboard day and night dual-band surveillance turret systems
- Offshore wind farms and oil platform perimeter safety monitoring equipment
- Coastal border security and marine patrol thermal imaging camera systems
- Maritime search, rescue and ocean reconnaissance optical observation devices
- Harbor and port anti-intrusion long-distance monitoring optical systems
Our professional optical engineering team provides one-stop customized marine optical solutions, including salt fog resistant coating design, seawater environment adaptation optimization, and personalized sealing edge structure customization. Every finished marine dome passes strict salt spray aging test and optical parameter inspection before delivery.
Why Choose Felix Glass Marine Corrosion Resistant Optical Domes
Professional Marine Optical R&D
Mature salt fog anti-corrosion coating formula optimized for long-term offshore harsh working conditions
Dedicated Marine Production Line
Independent anti-corrosion coating workshop with exclusive marine process standards
Full-Depth Customization
Custom size, radian, edge sealing structure and dual AR+AF anti-fog coating scheme
Strict Salt Fog Testing
100% salt spray aging test and optical transmittance inspection before shipment
International Standard Compliance
Meet US and EU industrial marine surveillance optical component specifications
Frequently Asked Questions
Q1: How long can sapphire dome resist marine salt fog erosion?
A: High-purity single crystal sapphire is chemically inert and will not oxidize or corrode. Matched with our exclusive marine anti-corrosion coating, it can work stably for many years in continuous coastal salt fog environment.
Q2: What are the functions of AR+AF marine composite coating?
A: The AR anti-reflection layer improves optical transmittance and reduces stray light interference; the AF anti-fog layer prevents seawater mist condensation, ensuring clear imaging in high-humidity marine weather.
Q3: Can plastic dome replace marine sapphire dome?
A: No. Plastic materials are prone to aging, scratching, deformation and salt corrosion under marine salt fog and UV radiation. Sapphire is the only reliable long-life solution for professional marine surveillance equipment.
Q4: Can you customize special sealing edge for marine camera housing?
A: Yes. We support customized chamfer, step edge and flange structure design to perfectly match the waterproof and sealing requirements of various marine camera housings.
Q5: Can you provide marine dome performance test reports?
A: We can provide official test reports including salt fog aging test, optical transmittance test and anti-fog performance test to support customer equipment certification and project bidding.
Get Custom Marine Corrosion Resistant Optical Dome Solution
Submit your offshore working environment, dual-band spectrum requirements and camera sealing dimensions. Our marine optical engineers will provide targeted anti-corrosion coating scheme and formal quotation within 24 hours.

















