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Precision Optics Engineered for Subsea Exploration

From deep-sea imaging suites to autonomous underwater vehicles, Knight Optical supplies mission-ready optical components engineered for the punishing demands of subsea environments.

Our corrision-resistant materials, specialist coatings, and tight-tolerance assemblies are trusted across the ocean-tech sector to deliver clarity, reliability, and performance in the depths - where visibility is limited and precicion is critical.

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Win a LEGO Set of The Endurance!

By signing up to our newsletter or by visiting Knight Optical at stand Q18, you could be in with a chance to win a LEGO set of The Endurance, the vessel from Shackleton's famed 1914 Antarctic voyage!

The giveaway will stay open until the end of the event on 12th March 2026 and we'll announce the lucky winner the following week, so keep an eye on your inbox to find out if you've won!

Enter to Win
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Bringing quality into focus

ISO 9001 Certified Quality

Every component is manufactured and inspected under our ISO 9001:2015 quality system - ensuring precision and reliability, mission after mission.

Over 30 Years of Experience

Three decades of optical expertise supporting subsea, defence, and research industries across the globe.

Ocean-Ready Materials

Our optical components are made with corrosion-reistant materials, specialist coatings, and tight-tolerance assemblies to deliver in the depths.

Custom Optical Solutions

From prototypes and testing to production and delivery, our bespoke optics are tailored to your exact specifications.

Global Supply Capability

Trusted by engineers worldwide, we offer consistent quality and on-time delivery, wherever your project takes you.

Wide-Ranging Uses

Our optics are trusted in thermal imaging, LiDAR, tracking systems, and more, delivering from surface to seabed.
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Optical Domes

Our precision-engineered optical domes are manufactured from materials such as BK7, sapphire, and acrylic, delivering exceptional clarity and structural strength - making them the ideal viewport solution for deep‑water ROVs, AUVs, and high‑pressure subsea imaging systems.

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UV & IR Lenses

Our subsea‑ready optical windows provide durable, high‑transmission viewing for underwater cameras, sensors, and inspection systems operating at depth. Available in BK7, sapphire, and Gorilla Glass, they can withstand harsh marine conditions while maintaining exceptional optical fidelity.

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Optical Windows & Diffusers

Knight Optical's high‑performance SWIR, MWIR, and LWIR components enable thermal imaging systems to operate with precision beneath the surface. Whether integrated into subsea inspection tools, navigation platforms, or search‑and‑rescue technologies, our IR optics deliver stable, high‑contrast data in low‑visibility marine conditions.

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