Edmund Optics Inc. Mounted IR Asphere 0.85NA, 1.87mm FL, 2.0 - 6.0 Micron AR Coated NT66-573

Wavelength Range of 1 - 14µm Variety of Coating Options Mounted and Unmounted Versions Our infrared aspheric lenses are ideal for a variety of mid-wave and long-wave infrared applications. The low-cost, molded design offers several key benefits over Germanium substrate aspheres. With a dn/dT and CTE significantly less than that of Germanium, our lenses feature a smaller change in focal length as a function of temperature change. And, with a higher operating temperature than Germanium (which suffers 20 30% transmission loss at 100°C), our lenses can be used in applications that were not previously possible with Germanium.The Mid-Wave and Long-Wave Infrared (IR) Aspheric Lenses are available with a variety of coating options. For custom requirements, including custom coatings, custom designs, or adding diffractive features to the aspheric surface, please contact our Sales Department.