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Optical Windows PRODUCTS >> Optical Windows
Protective Window
PHYO protective windows are widely used in the optical systems, in order to protect the inside precision optical systems from dust, water, scratches, damage, etc. 
They can be customer designed in different size, surface polishing standard, and apply coating.
Windows can be round or retangle, or with R chamfer of angles, with installation steps

Specification Commercial High Standard
Dimension 3mm-200mm Normally φmin0.5, φmax450
Thickness Tmin can be reach to 0.2mm
Diameter Tolerance +0.00/-0.20mm +0.00/-0.05mm
Thickness Tolerance +0.00/-0.20mm +0.00/-0.05mm
Parallelism <10arcsec <5arcsec
Flatness <Lambda <L/20
Surface quality(S/D) 60-40 10-5
Bevel(By 45degree) 0.20mm-0.50mm 0.05-0.20mm
Coating Single Wavelength AR,R<0.25% as required. BBAR,R<0.5% as required. *
*  AR, or BBAR can be with requested color, all can be done by dielectric AR coating with indication
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