Windows Products
BK7 Windows Fused Silica Windows MgF2 Windows Sapphire Windows
BK7 Windows

•High Precision BK7 Windows

  • Main Specifications:
  • Material
    BK7 grade A optical glass
  • Diameter Tolerance
    +0.0/-0.1mm
  • Thickness Tolerance
    +/-0.2mm
  • Surface Quality
    20-10 scratch and dig
  • Parallelism
    See the table
  • Clear Aperture
    >80%
  • Wavefront Distortion
    λ/10 per 25mm @632.8nm
  • Chamfer
     Protective Bevel

 

 

  • Part No.
  • 1' Parallelism
  • 10" Parallelism
  • Φ(mm)
  • T(mm)
  • WIN0110
  • WIN0218
  • 10.0
  • 6.0
  • WIN0125
  • WIN0225
  • 12.7
  • 6.0
  • WIN0160
  • WIN0260
  • 25.0
  • 6.0
  • WIN0163
  • WIN0263
  • 25.4
  • 6.35
  • WIN0181
  • WIN0281
  • 30.0
  • 6.0

• BK7 Windows

  • Main Specifications:
  • Material
    BK7 grade A optical glass
  • Diameter Tolerance
    +0.0/-0.1mm
  • Thickness Tolerance
    +/-0.2mm
  • Surface Quality
    60-40 scratch and dig
  • Parallelism
    1 arc minute
  • Clear Aperture
    >80%
  •  Wavefront Distortion
    λ/4 per 25mm @632.8nm
  • Chamfer
     Protective Bevel

 

 

  • Part No.
  • Φ(mm)
  • T (mm)
  • WIN0018
  • 10.0
  • 3.0
  • WIN0026
  • 12.7
  • 1.0
  • WIN0027
  • 12.7
  • 3.0
  • WIN0035
  • 15.0
  • 1.0
  • WIN0036
  • 15.0
  • 3.0
  • WIN0060
  • 25.0
  • 3.0
  • WIN0063
  • 25.4
  • 3.0
  • WIN0081
  • 30.0
  • 3.0
  • WIN0090
  • 50.0
  • 3.0
  • WIN0091
  • 50.8
  • 6.35

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