Infrared Optics
Infrared lenses make thermal imaging and sensing possible where visible light falls short, including low-light scenes and high-temperature environments. They are a core component in thermal imaging systems, infrared cameras, and surveillance equipment. Hexagon Optics molds infrared lenses to tight tolerances, with materials and coatings matched to each application.
Chalcogenide Glass
Chalcogenide glass (ChG) is a key enabling technology for high-volume thermal imaging. Its amorphous structure allows it to soften before melting, making it moldable unlike competing materials that abruptly change phases. (Germanium for example) At Hexagon Optics, we mold chalcogenide glass alongside traditional oxide glasses, leveraging our expertise in precision glass molding to produce high-quality optical components. Chalcogenide glass is available in several different formulations from many different companies. There are also several ’boutique’ grades available but they have low material readiness levels. (See Below)
Germanium-Free Chalcogenide Advantage
A myth or misconception about chalcogenide glass is that they do not contain Germanium. Most chalcogenide glasses contain germanium, and is very beneficial in ChG; it increases the overall thermal stability, maximum use temperature, hardness, rigidity and elastic modulus. It also expands the infrared transmission window towards shorter wavelengths and improves resistance to photo-darkening.
The main issues with germanium are cost and limited availability due to the current geo-political environment. Hence the main use of chalcogenides is with germanium-free grades.
At Hexagon Optics, we focus on As40Se60 for its lower cost, scale of manufacture and well rounded properties. We can mold materials from a variety of suppliers.
Chalcogenide Optics
Reliable chalcogenide optics enable higher performing, more cost effective infrared systems when material and manufacturing challenges are properly controlled. Hexagon Optics combines extensive chalcogenide materials expertise with precision melting, diamond turning, and molding capabilities to deliver consistent optical performance in demanding environments.
From material selection through full scale production, Hexagon Optics supports customers with design guidance, prototyping, and scalable manufacturing. By optimizing both the material and the manufacturing process, Hexagon Optics helps reduce cost, improve system performance, and shorten time to market.
Let’s discuss your IR needs