fused sillica windows
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low distortion, low scatter, and excellent parallelism for laser and non-laser application
Advantages of fused silica windows include: good transmission, low thermal expansion, stability and resistance to thermal shock over large temperature excursions, wider thermal operating range and high laser damage threshold.
Material: UV grade Fused Silica
Diameter Tolerance: +0.0, -0.15mm
Thinkness Tolerance: +/-0.2mm
Clear Aperture: >85% of diameter
Parallelism: <1 arc minute(Standard), <10 arc seconds(Precision)
Surface Quality: 60-40 scratch and dig(Standard), 40-20 scratch and dig(Precision)
Flatness: lambda/4 per 25mm 632.8nm(Standard), lambda/10 per 25mm 632.8nm(Precision)
Wavefront Distortion: lambda/4 per 25mm 632.8nm(Standard), lambda/10 per 25mm 632.8nm(Precision)
Bevel: 0.25mmx45deg