Si & Ge lens blanks - Cimcoop Holding LTD | Cimcoop Holding LTD

Si & Ge lens blanks

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Si & Ge lens blanks

Silicon and Germanium are used as a substrate materials for the production of IR lenses and windows operating in the mid-wave (MWIR) and long-wave (LWIR) infrared  ranges. Cimcoop has over 25 years of experience in crystal growing is delivering IR lens blanks in round, rectangular and other complex shapes. We are able to control type, orientation and resistivity in order to respond to the specific needs of our customers.  Requests for any quantity from prototype orders to thousands of pieces are welcome.


Product highlights

  • Diameters up to 152 mm (6 inches)
  • Delivery in 2-3 weeks
  • Custom type, orientation and resistivity

Manufacturing tolerances

Diameter – 0.03 mm
Thickness ± 0.02 mm
Flatness ≤10 μm
Parallelism ≤ 20 μm
Perpendicularity ≤ 20 μm
Chamfer 0.1 to 1 mm
ETV ≤ 20 μm
Roundness ≤ 20 μm
Length & Width ± 0.1 mm