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′

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CaF2 Windows

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Parameters

Used where the second side reflection (ghost image) needs to be eliminated

Coating substrate for interferometer flats, laser cavity mirrors and beamsplitters

These wedged plane windows are polished to λ/10 flatness with a laser grade finish on both surfaces

They are intended for use in situations where reflections from the second surface will interfere with the

correct operation of the optical system. Whenever ghost images will contribute to glare or for use in

laser systems or interferometry it is advisable to use wedged window so the second image is reflected

out of the beam. Four different wedge angles are offered and the wedge should be chosen to suit the

application. Select a coating appropriate to your application or contact us with your special coating

requirements.

Diameter	Thickness	Material
	(inches)	(inches)
WW-1206B	0.50	0.250	BK7A
WW-1906B	0.75	0.250	BK7A
WW-1909B	0.75	0.375	BK7A
WW-2506B	1.00	0.250	BK7A
WW-2509B	1.00	0.375	BK7A

WW-3809B	1.50	0.375	BK7A
WW-5009B	2.00	0.375	BK7A
WW-5012B	2.00	0.500	BK7A
WW-7612B	3.00	0.500	BK7A
WW-10112B	4.00	0.500	BK7A

WW-1206B	0.50	0.250	UV F.S.
WW-1906B	0.75	0.250	UV F.S.
WW-1909B	0.75	0.375	UV F.S.
WW-2506B	1.00	0.250	UV F.S.
WW-2509B	1.00	0.375	UV F.S.

WW-3809B	1.50	0.375	UV F.S.
WW-5009B	2.00	0.375	UV F.S.
WW-5012B	2.00	0.500	UV F.S.
WW-7612B	3.00	0.500	UV F.S.
WW-10112B	4.00	0.500	UV F.S.

Specifications

Surface Flatness:	＜λ/10@633nm
Surface Quality:	＜10/5(both sides)
Wedge α:	30′，1°，2°or 3°
Diameter Tolerance:	＜+0.00/-0.20mm
Thickness Tolerance:	＜±0.25mm
Clear Aperture:	≥85% of diameter
Bevel:	0.3mm(typital)*45°