Corrosion Resistant Windows

The Excelitas corrosion resistant windows provide low defect, extreme environmental stability, and mechanical and chemical (abrasion, salt fog) durability using our proprietary Ion Beam Sputtered (IBS) coating technology.

Excelitas uses techniques such as continuous polishing and double-side polishing to produce optical surfaces of exceptional flatness. Double-side polishing is used to efficiently produce plane-parallel surfaces of up to 300mm diameter with typical flatness levels of approximately 20nm RMS per cm of diameter.

Continuous polishing consists of holding parts in a ring-lap configuration typically on a table made of pitch and is used to achieve much higher flatness levels, approximately 3nm RMS per cm of diameter, on parts up to 250mm diameter.

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Corrosion Resistant Windows

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