Chalcogenide glass: optical components for the infrared

Vision Optics are now able to offer infrared glass materials, specifically chalcogenide glasses, to extend our optical components range to include IR (infrared) applications.

As the cost of cooled IR detectors and thermal imaging cameras has dropped in recent years, they have become more widely used and available for applications such as night vision, surveillance, hunting, medical diagnosis, and remote temperature measurement (heat leak detection) in the manufacturing and construction industries.

Chalcogenide glasses and fibres are a relatively new and important material for IR optics as they have low dispersion, high transmittance across a wide wavelength range (~1 to 12µM) and are able to be readily modified to vary the optical properties (such as transmission range). They have also contributed to the fall in the cost of IR sensors because chalcogenide glass IR optics are significantly easier and less expensive to produce than germanium.

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