High Presion Optical Step Windows
Custom step windows are ideal use in viewports, pressure, and vacuum situations. Sapphire step windows also make great viewports for deep ocean vehicles.
Feel free to contact us for your customized step windows circle, square with different materal.
Step Windows Specification:
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Material:
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BK7, Fused Silica, Sapphire etc. Optical glass
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Dimension Tolerance:
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+0.0, -0.1mm
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Thickness Tolerance:
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± 0.1mm
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Surface quality:
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20/10-80/50
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Clear Aperture:
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>85%
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Flatness:
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λ/10-2λ
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Parallelism:
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10"-3'
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Bevel:
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<0.25mm X 45°
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Coating:
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Upon requirement
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