W1168- Germanium 25.4mm dia x 1mm th
Product Attributes
Material/Grade: Germanium
Diameter: 25.40mm ±0.10mm
Thickness: 1.0mm ±0.10mm
Metrology Wavelength: 632nm
Clear Aperture (CA): 85%
Transmitted Wavefront: < 0.25 Waves
Reflective Wavefront: < 1 wave
Parallelism: < 30 Seconds
Bevel(s): <1nm
Chips: < 0.5 mm
Cosmetics: 40/20
Edge Finish: fine edge ground
Roughness: <1nm