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Optical Germanium IR Windows
 

Germanium effective IR optical window operation ranges from 3-5 microns and 8-12 microns. Germanium is popular for its high refraction, strength and thermal conductivity, widely used in lasers and imaging systems.

Optical Ge Windows

High Precision

Standard

Specifications

Diameter Tolerance

+0.0/-0.1mm

+0.0/-0.1mm

Thickness tolerance

¡À0.2mm

¡À0.2mm

Clear Aperture

>80%

>80%

Parallelism

<10 seconds

3'

Surface Quality

40-20 scratch and dig

80-50 scratch and dig

Wavefront Distortion

¦Ë/4 per 25mm at 632nm

2¦Ë per 25mm at 632nm

Bevel

< 0.25mm¡Á45¡ã

<0.25mm¡Á45¡ã


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