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Phosctech offers a wide range of materials and degrees of precision windows. These windows are made of BK7, B270, Fused Silica, Sapphire, CaF2, MgF2, Ge, Si, etc, Special materials are available upon request.
A broad range of single layer or multilayer antireflective coatings on optical windows are available.
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Capability:
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Attribute
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Commercial
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High Precision
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Material
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BK7 grade A Optical glass
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Typical Diameter (mm)
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5, 10, 12.7, 25.4, 30, 50, 90, 160
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Typical Thickness (mm)
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1, 2, 3, 6, 10
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Diameter Tolerance
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+0.0, -0.2mm
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+0.0, -0.1mm
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Thickness Tolerance
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±0.1mm
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±0.01mm
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Parallelism
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<1 arc minute
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<10 arc seconds
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Surface Quality
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40-20 scratch and dig
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20-10 scratch and dig
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Wavefront Distortion
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λ/4 per 25mm @ 632.8nm
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λ/10 per 25mm @ 632.8nm
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Protective Bevel
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0.1 - 0.5mm × 45°
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0.05 - 0.2mm × 45°
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Note:Other sizes and coatings are available upon request.
High Precision BK7 Windows
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Diameter(mm)
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T
(mm)
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1’ Parallelism
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10” Parallelism
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Part No
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Part No
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10.0
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6.0
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WIN1010
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WIN1011
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12.7
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6.0
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WIN1210
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WIN1211
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25.4
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6.35
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WIN2510
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WIN2511
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30.0
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6.0
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WIN3010
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WIN3011
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50.0
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10.0
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WIN5010
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WIN5011
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中文版
English
BK7 Windows