What are the specifications of a Germanium (Ge) 3-12 IR Lens?

Description: A high efficiency anti-reflectance coating with moderate durability for germanium optics, providing good transmittance in the 3-12µm spectral band.

Application: Thermal imaging systems & FLIR systems.

Spectral Performance: The following spectral transmittance value is based on coating both sides of a 1mm thick germanium substrate with Ge 3-12.

Spectral Performance: @ 3-12µm
Transmission: 94% average
Reflection: 2% average per surface

Environmental Performance: The coating is laboratory cleanable.

The coating performance specified herein is typical of this particular coating and does not preclude adherence to other specifications on a case by case basis.

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