Non-Designated Unit
Diameter: 5.250″+/-.005″
Thickness: 0.2745″+/-.0075″
Edge Bevel: 0.25mm Maximum x 45 Degrees, Both Edges
Parallelism: < 5.0 Arc Seconds
Transmitted Wavefront Error: Peak to Valley: < 0.25 Wave @ 633nm
RMS: < 0.040 Wave @ 633nm
Surface Quality: 40-20 per MIL-PRF-13830, Both Faces
Surface Roughness: < 20 Angstroms RMS, Both Faces
Clear Aperture: Central 4.488″ Minimum Diameter, Both Faces
Material Type / Quality: Sapphire, Optical Grade,
GT Crystal Systems Low Absorption
Optical Sapphire (LAOS)
Crystallographic Orientation: c-Plane
Coating: None, Not Required