TECHSPEC® Germanium Infrared (IR) Aspheric Lenses provide diffraction-limited focusing performance over a broad spectral range in the Mid and Long Wave infrared regions. Ideal for monochromatic light sources, such as quantum cascade lasers, these lenses offer a high-performance alternative to standard plano-convex lenses.
The lenses are available in a 12.5, 25, or 50mm diameter. TECHSPEC® Germanium Infrared (IR) Aspheric Lenses are available uncoated, or with BBAR coating options.
Uncoated germanium has transmission of <50%, so custom anti-reflection (AR) coatings should be considered if specifying an uncoated lens. Each BBAR coated lens offers >95% transmission, making it ideal for integration into a variety of OEM applications. For custom design or coating options, please contact our Sales Department.
AR COATED GERMANIUM | |
Typical transmission of a 3mm thick Ge window with BBAR (3000-5000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg <3% @ 3000 - 5000nm Data outside this range is not guaranteed and is for reference only. |
|
Typical transmission of a 3mm thick Ge window with BBAR (3000-12000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg <5.0% @ 3 - 12μm Data outside this range is not guaranteed and is for reference only. |
|
Typical transmission of a 3mm thick Ge window with BBAR (8000-12000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg <3.0% @ 8 - 12μm Data outside this range is not guaranteed and is for reference only. |
or view regional numbers
QUOTE TOOL
enter stock numbers to begin
Copyright 2023 | Edmund Optics, Ltd Unit 1, Opus Avenue, Nether Poppleton, York, YO26 6BL, UK
California Consumer Privacy Acts (CCPA): Do Not Sell or Share My Personal Information
California Transparency in Supply Chains Act