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Black and grey optical lens assembly with a red ring around the front element, shown on a white background.©️ G&H Garnet Series™ MWIR Lens Assemblies

G&H Launches Garnet™ MWIR Supply-Resilient Germanium-free Lens Assemblies

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G&H (LON: GHH), a global leader in advanced photonics and optical solutions, is launching its new Garnet™ MWIR Lens Assemblies at SPIE Defense + Security 2026, introducing a Germanium-free optical solution for high-performance mid-wave infrared imaging systems.

Developed by G&H | StingRay, the Garnet™ series has been designed to help customers reduce reliance on constrained infrared materials while maintaining the optical performance required for demanding defense, surveillance, and security environments. With no Germanium or chalcogenide materials, Garnet™ supports a more resilient approach to long-term MWIR system design.

Built on the established Ruby™ platform, Garnet™ combines proven optical design experience with improved material resilience. The series delivers achromatic performance across the 3–5 µm MWIR wavelength range and is designed for compatibility with standard MWIR architectures, including f/2.3, f/2.5, and f/4.0 systems.

Soldier in camouflage operates a tripod-mounted target designation and laser rangefinding sight, looking through a large green-tinted optical lens in a dry, open field.

Germanium-Free Optics for Supply-Resilient Imaging

Infrared imaging systems used in mission-critical applications depend on optical performance, reliability, and long-term availability. As supply chain pressures continue to affect specialist infrared materials, system designers are seeking alternatives that can reduce material risk without compromising imaging capability.

The Garnet™ series addresses this challenge by eliminating the use of Germanium while maintaining the performance required for modern MWIR imaging. Its Germanium-free design provides system designers with a more supply-resilient lens option for platforms that must perform reliably in demanding operational conditions.

Designed for Mission-Critical MWIR Applications

Garnet™ MWIR Lens Assemblies have been developed for demanding infrared imaging applications where image quality, ruggedness, and system compatibility are essential.

Garnet™ is designed to support applications including:

  • Intelligence, surveillance and reconnaissance — ISR
    Supporting MWIR imaging systems used for observation, situational awareness, and long-range surveillance.
  • Border security
    Enabling thermal imaging capability for perimeter monitoring, border protection, and security surveillance.
  • Target detection and tracking
    Supporting systems that need reliable infrared performance for identifying, detecting, and tracking targets in challenging environments.
  • Defense and security platforms
    Providing mission-ready MWIR optical performance for integrated defense, surveillance, and security systems.
NightCrawlIR Group - Four advanced infrared optical lenses of varying sizes with visible internal circuit boards, arranged on a white surface. The lenses reflect a vivid, mountainous desert landscape in shades of pink, purple, and blue©️ G&H | StingRay

Core Product Features

The Garnet™ series has been designed to integrate with standard MWIR system architectures while offering a more resilient material strategy for long-term programmes.

Key features include:

  • Germanium-free optical design
  • No chalcogenide materials
  • Achromatic performance across 3–5 µm
  • Compatibility with f/2.3, f/2.5, and f/4.0 systems
  • Support for up to 21 mm image formats
  • Manual focus with lock
  • Standard IR bayonet mount
  • Focal lengths of 13, 25, 50, 100, and 200 mm
  • Built on the proven Ruby™ platform
  • Optimized for demanding field conditions
G&H and SPIE Defense + Security event banner promoting Booth #613 (April 28–30, 2026, National Harbor, Maryland), with a collage of defence optics products and cockpit imagery on the right.©️ G&H

Supporting Long-Term Defense and Security Programmes

For defense and security system designers, material availability is an important consideration in both new product development and long-term platform support. Garnet™ provides a supply-resilient path forward for MWIR imaging systems by removing dependence on Germanium while retaining the system compatibility and optical performance required for mission-critical applications.

By combining Germanium-free optics, standard system compatibility, and proven platform heritage, Garnet™ enables customers to build more resilient infrared imaging systems for the future.

Visit G&H at SPIE Defense + Security 2026

G&H will launch the new Garnet™ MWIR Lens Assemblies at SPIE Defense + Security 2026, where visitors can meet the G&H team at booth #613 and learn more about the new series, its Germanium-free design, and its role in supply-resilient MWIR imaging.

Visitors are invited to speak with G&H to discuss how Garnet™ can support next-generation defense, ISR, border security, target detection, tracking, and wider security imaging platforms.

Book a meeting with us at D+S to chat about the new Garnet™ MWIR Lens Series
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Products

G&H | StingRay Garnet™ MWIR lens series

Discover the new Garnet™ MWIR Lens Series from G&H | StingRay - a Germanium-free optical solution designed to support supply-resilient infrared imaging in harsh environments.

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