Photonics ProductsOptics & Optical FabricationOpticsWindows

BK7 Windows

  • Company: Shanghai Optics Inc.
  • Type: Windows
  • Applications: Biomedical/Medical, Industrial, Scientific Research
  • Irregularity (fringe): l/10
  • Diameter Tolerance: +0.0, -0.05mm
  • Thickness Tolerance: ±0.1mm
  • Clear Aperture: >85%
  • Surface Quality: 10-5 scratch and dig
  • Wavefront Distortion: l/10 per 25mm

Shanghai Optics' BK7 windows are suitable for demanding optical applications and can be manufactured with laser-grade precision. BK7 glass has a density of 2.51 g/cm3 and a Knoop hardness of 610. It has coefficient of expansion of about 7.1 x 10-6 K from -30 °C to +70 °C, and about 8.3 x10-6/K from +20 °C to +300 °C.
BK7 Windows

Shanghai Optics Inc.
425 Main St., Suite 2E
Metuchen, NJ 08840
United States
Phone: +1 732-692-8175
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