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Sapphire window is made from synthetic sapphire and can be made much thinner than BK7 windows. It is highly durable with a wide transmission range due to its highly abrasion-resistant, with hardness approaching that of diamonds. Sapphire window is best suited for scratch resistance application that requires better transmission over a wide range spectrum.
5.Silicon crystal windows
Specifications
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Item
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Commercial
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High Precision
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Material:
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Sapphire
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Dimension X×Y(φ):
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1×1mm~25.4×25.4mm；φ3~φ25.4mm
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Dimension tolerance:
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±0.1mm
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±0.03mm
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Parallelism:
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＜1′
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＜5″
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Clear aperture:
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85%
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Surface quality:
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MIL20-10
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Flatness(per 25.4mm):
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λ/4@ 632.8nm
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λ/10@ 632.8nm
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Perpendicularity:
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＜12′
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＜3′
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Coating:
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Specified by customer
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