3.What is AR coating on subsea optical dome port? | Felix Glass
- Share
- Issue Time
- Oct 16,2026

What is AR coating on subsea optical dome port?
AR coating, or anti-reflection coating, is a thin multi-layer optical film deposited on dome surfaces. It reduces light reflection loss and boosts light transmission for subsea cameras, LiDAR and optical sensors.
Key benefits of AR coating for underwater dome
- Higher optical transmission, brighter image for low-light deep sea environment
- Reduce ghost image and flare
- Custom coating for target spectrum: visible light, near infrared or multi-band
Important notes for subsea AR coating
You must specify your working wavelength range before coating. Wrong wavelength coating will not deliver expected optical performance. AR coating is optional for dome ports, not standard default.
AR coating is available on both JGS1 fused silica and C-axis sapphire dome substrates.
FAQ
Q: Is AR coating standard included on your domes?
A: No, AR coating is an optional add-on service.
Q: Can AR coating work for both visible and infrared?
A: Yes, multi-band broadband AR coating can cover combined spectrum.
Q: Does seawater damage AR coating?
A: Our marine-grade AR coating has good seawater resistance for subsea service.
Q: Can we add AR coating on flanged optical dome?
A: Yes, integrated flanged dome supports AR coating.
CTA: Share your working wavelength requirement, get quotation for subsea dome with AR coating.
Related Subsea Dome Products
3000m Deep Sea Optical Dome Port
7000m Ultra Deep Sea Optical Dome Port
Flanged Optical Dome Port | Integrated One-Piece Flange Subsea Dome
Get Quotation for Subsea Dome with AR Coating
Share your working wavelength requirement, get quotation for subsea dome with AR coating.
Send Your Wavelength SpecRelated reading: What is FEA simulation for subsea dome port?
Related reading: Hydrostatic Pressure Test for Subsea Dome Port
Related reading: Standard Dome vs Integrated Flanged Dome Port
Related reading: Optical Dome Diameter Tolerance & Surface Specifications
Related FAQ: Subsea Optical Dome Port FAQ Library
Related reading: 3000m Deep Sea Optical Dome Port Guide