• yibeiteoptics@gmail.com
  • +86-199 0981 7122
Infrared optics home / Product Center
Germanium infrared lens
  • Germanium infrared lens
  • Contact Us
  • yibeiteoptics@gmail.com

Product Details

Germanium infrared lens product

Germanium (Ge) Lenses are ideal for use in Mid-Wave Infrared (MWIR) and Long-Wave Infrared (LWIR) applications, including thermal imaging, spectroscopy, or FLIR. Additionally, Germanium’s Knoop Hardness of 780 is well suited for rugged environments.
Due to thermal runaway, or the decrease in transmission as temperature increases, Germanium (Ge) Lenses should be used at temperatures below 100°C. Germanium’s high density (5.33 g/cm3) should be considered when designing for weight-sensitive systems.

Specification

Material Germanium
AR Coating Range 3-5um,7-12um,3-11um
Reflectance over AR Coating Range @ 0° AOI Ravg < 1%, Rabs < 2%
Transmission over AR Coating Range @ 0° AOI Tavg > 94%, Tabs > 90%
Damage Thresholdb 0.5 J/cm2 (10.6 µm, 100 ns, 1 Hz, Ø0.478 mm)
Diameter Tolerance +0.0/-0.1 mm
Thickness Tolerance ±0.1 mm
Focal Length Tolerance ±1%
Surface Quality 60-40 Scratch-Dig
Surface Flatness (Plano Side) λ/2
Spherical Surface Powerc (Convex Side) 3λ/2
Surface Irregularity (Peak to Valley) λ/2
Centration < 3 arcmin
Clear Aperture >Ø10.16 mm (Ø1/2" Lenses)
>Ø20.32 mm (Ø1" Lenses)
Design Wavelength 10.6 μm


We can manufacture lenses in any optical material required. Please contact us with your specific requirements.Custom lenses are available on request.

  • Name *
  • Email *
  • Phone *
  • Message *
Contact Us
  • D09-320-321, SISP, Shenben Str., Hunnan Dist., Shenyang 110179, China
  • +86-199 0981 7122
  • +86-199 0981 7122
  • yibeiteoptics@gmail.com
Copyright © 2018 - 2020 ebetteroptics.com All Rights Reserved       |  PRIVACY POLICY  |   Web support by : web024.cn   
TOP