Specification: Dimension Tolerance: +0,-0.2mm Thickness Tolerance: ±0.2mm Clear Aperture : >80% Flatness: l/10 @632.8 nm Parallelism: < 1 arc minute Surface Quality: 20/10 Coating: HR coating on S1, R>99.5% for random...[more]

Specification: Flatness: Lambda/10 of Lambda/4 ( see table) Di ameter Tolerance :+0,-0.2mm Thickness Tolerance: :±0.2mm Clear Aperture : >80% Surface Quality: 40-20 scratch and dig Metal coatings : Al,Ag,Au protected Note : Rectangular and...[more]