D150 Si window

D150 Si window

The D150 Si window is a precision-manufactured silicon optical window designed for use as a protective and transmissive element in infrared (IR) imaging systems. Silicon is widely used in infrared optics thanks to its excellent transmission in the mid-infrared range, good mechanical strength, and thermal stability.

This optical window features two polished surfaces, ensuring low scatter and high optical quality for IR camera applications where image fidelity and system reliability are critical. The component is optimized for mechanical integration while maintaining suitable optical performance for non-imaging and imaging IR systems.

Key specifications

  • Material: Optical-grade silicon
  • Diameter: 150 mm (0 / −0.1 mm)
  • Thickness: 2 mm ± 0.1 mm
  • Surface quality (S/D): 40 / 20
  • Surface finish: Two surfaces polished
  • Parallelism: < 3 arc minutes
  • Chamfer: 0.25 (+0.25 / −0.00) mm × 45°

Typical applications

  • Infrared camera windows
  • Protective windows for IR sensors and detectors
  • Thermal imaging systems
  • Industrial, scientific, and monitoring IR equipment

Custom diameters, thicknesses, surface qualities, coatings, or edge geometries can be supplied upon request to meet specific application requirements.