Usedwherethesecondsidereflection(ghostimage)needstobeeliminatedCoatingsubstrateforinterferometerflats,lasercavitymirrorsandbeamsplittersThesewedgedplanewindowsarepolishedtoλ/10flatnesswithalasergradefinishonbothsurfacesTheyareintendedforuseinsituationswherereflectionsfromthesecondsurfacewillinterferewiththecorrectoperationoftheopticalsystem.Wheneverghostimageswillcontributetoglareorforuseinlasersystemsorinterferometryitisadvisabletousewedgedwindowsothesecondimageisreflectedoutofthebeam.Fourdifferentwedgeanglesareofferedandthewedgeshouldbechosentosuittheapplication.Selectacoatingappropriatetoyourapplicationorcontactuswithyourspecialcoatingrequirements. Diameter ThicknessMaterial   (inches) (inches) WW-1206B0.500.250BK7AWW-1906B0.750.250BK7AWW-1909B0.750.375BK7AWW-2506B1.000.250BK7AWW-2509B1.000.375BK7A    WW-3809B1.50 0.375BK7AWW-5009B2.00 0.375BK7AWW-5012B2.00 0.500BK7AWW-7612B3.000.500BK7AWW-10112B4.000.500BK7A    WW-1206B0.500.250UVF.S.WW-1906B0.750.250UVF.S.WW-1909B0.750.375UVF.S.WW-2506B1.000.250UVF.S.WW-2509B1.000.375UVF.S.    WW-3809B1.500.375UVF.S.WW-5009B2.000.375UVF.S.WW-5012B2.000.500UVF.S.WW-7612B3.000.500UVF.S.WW-10112B4.000.500UVF.S. SpecificationsSurfaceFlatness:  ＜λ/10@633nmSurfaceQuality: ＜10/5(bothsides)Wedge α: 30′，1°，2°or3°DiameterTolerance:＜+0.00/-0.20mmThicknessTolerance:＜±0.25mmClearAperture: ≥85%ofdiameterBevel:0.3mm(typital)*45° WedgeCodeWedgeAngle α ξTolerance0.530arecmin±3′1.01degree±6′2.02degree±6′3.03degree±6′