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LWIR Ge-free Optical Windows

Product information "LWIR Ge-free Optical Windows"

GH Optics introduces its advanced LWIR Ge-free Optical Windows, a cutting-edge solution designed for long-wave infrared (LWIR) applications in the 8–12 μm spectral range. Engineered using proprietary chalcogenide glass substrates from the GHW series, these windows offer a high-performance alternative to traditional germanium optics. By eliminating the need for germanium, GH Optics delivers a cost-effective, lightweight, and thermally stable solution without compromising on optical quality.

These optical windows are enhanced with either DLC (diamond-like carbon) or HD (hard film) coatings, combined with AR (anti-reflection) layers, achieving transmittance rates exceeding 94%. This makes them ideal for demanding infrared systems where clarity, durability, and cost-efficiency are paramount.


Product Parameters


Substrate MaterialGe-free Chalcogenide glass GHW
Diameter Tolerance+/- 0.1 mm
Thickness Tolerance+/- 0.1 mm
Parallelism≤ 3 arcmin
Chamfer0.2 mm x 45°
Surface Quality60/40-80/50
Flatness< 5 fringes
CoatingDLC/AR or HD/AR



Key Features

  • Germanium-Free Design: Utilizes GH Optics’ proprietary GHW chalcogenide glass, eliminating reliance on expensive and supply-sensitive germanium.
  • High Transmittance: Achieves >94% transmittance in the LWIR band (8–12 μm), ensuring superior signal fidelity for infrared imaging and sensing.
  • Advanced Coating Technology: Available with DLC or HD coatings plus AR layers, providing excellent scratch resistance, environmental durability, and minimized reflection losses.
  • Thermal and Mechanical Stability: Offers robust performance across varying environmental conditions, making it suitable for field-deployed systems.
  • Cost Optimization: Reduces overall system costs while maintaining high optical performance, ideal for scalable industrial and research applications.

Applications

LWIR Ge-free Optical Windows are optimized for a wide range of infrared technologies, including:

  • Infrared Thermal Imaging: Enhances image clarity and system reliability in surveillance, automotive night vision, and industrial inspection.
  • Photoelectric Detection Systems: Improves sensitivity and accuracy in scientific instrumentation and remote sensing.
  • Environmental Monitoring: Suitable for gas detection and spectroscopic analysis in harsh environments.
  • Defense and Aerospace: Offers lightweight, durable optics for UAVs, targeting systems, and infrared countermeasures.
  • Medical and Industrial Diagnostics: Enables precise thermal profiling and non-invasive diagnostics.

What's Next?

GH Optics continues to innovate in the field of infrared optics, expanding its portfolio of germanium-free solutions to meet the evolving demands of global industries. The LWIR Ge-free Optical Windows represent a significant step forward in sustainable, high-performance infrared technology.

For researchers, engineers, and procurement specialists seeking reliable, cost-effective alternatives to germanium optics, GH Optics provides a compelling solution backed by deep expertise and rigorous quality standards.


Contact our sales team today to request a quote, discuss customization options, or learn more about how LWIR Ge-free Optical Windows can enhance your infrared systems.

Manufacturer "GH Optics"
Founded by a team of optical experts with more than ten years of experience in the optical industry, GH Optics focuses on the design, development and series production of precision optics. Among the core competences of the manufacturer are the processing of optical glass preforms (VIS and IR) including polishing, grinding and CNC machining, as well as precision molding of aspheric lenses. Using advanced technologies, GH Optics can coat components with a wide portfolio of materials for wavelengths ranging from 350 nm to 14 µm. The supplier also offers optical assembly, ranging from mounted lenses and thermal imaging assemblies to modules and complex optical systems. A full set of qualification and test capabilities guarantees high and consistent product quality of the products. All products supplied by GH Optics are RoHS compliant. GH Optics’ standard catalog products range from precision molded aspheric lenses for the visible (VIS) and infrared (IR) range, mounted aspheric lenses and fiber collimators to thermal imaging lens assemblies and freeform optics. Beyond its catalogue products, GH Optics specifies, develops and manufactures customized optical solutions according to the customer’s specifications and requirements.
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