Elliptical Window -  UV Fused Silica & BK7A (EW)

  • Elliptical (45 degrees)
  • Laser quality polish on both sides, uncoated

Elliptical windows are used for large angles of incidence so that they present a circular cross section to the incoming beam. They are offered for use at 45° and at Brewster’s angle. These elliptical plane windows are polished to a laser grade finish on both sides. Select a coating appropriate to your application or contact us with your special coating requirements.

 

Surface Flatness:
  • If thickness >= 1.5mm : Lambda/4@ 633nm
  •  If thickness >1.5mm : Lambda /10 @ 633nm
Surface Quality: <10/5 (both sides)
Wedge: <3 arc min
Diameter Tolerance: <+ 0.00 / - 0.20 mm
Thickness Tolerance: <± 0.25 mm
Clear Aperture: >85% of diameter
Bevel: 0.3 mm (typical) x 45°

To create a Lambda part number use the following :
 

 Product Type: 
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 Price:  US Dollars

For coating information, please contact the Lambda Sales Team.