Precision optical window MSPW series

flat circularsapphire

MSPW series plane parallel optical quality sapphire windows are designed for more demanding optical applications where image quality and birefringence effects are important. The raw material has negligible lattice distortion and is oriented with the optical axis normal to the faces to minimize the inherent birefringent properties of single crystal sapphire. Typical applications include: •Imaging optics •Polarization sensitive optics •Short wavelength (UV) optics •Focusing optics & reticles •Refractometer Windows We maintain a substantial inventory of optical quality sapphire windows and most are available for shipment from stock. For more demanding applications, we offer Laser Quality Windows. Specifications: Material:Optical Grade single crystal Sapphire Orientation:C-axis perpendicular to the faces Diameter Tolerance:+0.000″ / -0.005″ Thickness Tolerance:+/- 0.1mm Clear Aperture:Central 90% of Diameter Parallelism:10 arc seconds Surface Quality:40-20 scratch-dig per MIL-O-13830-A Flatness:(1.0″ Φ or less) 1/4 λ at 0.633µm (Over 1″ Φ) 1/4 λ per inch @ 0.633µm