Specification:
Material: Fused Quartz Vitrosil 055?
Dimensions: Diameter +0.00/-0.20mm
Squares/Rectangles ± 0.20mm
Thickness: ± 0.10mm
Edges: Fine Ground
Surfaces: 60/40
Flatness: Diameters ≤5 fringes
Squares/Rectangles ≤ 10 fringes
Parallelism: ≤ 3 arc minutes
Custom Sizes & Options
Diameters: 4mm to 500mm
Squares/Rectangles: 1mm to 500mm
Thickness: 0.10 to 50mm
Surfaces: 80/50 to 20/10
Edges: Ground or polished
Dimensions/Thickness: Tol. Up to 0.02mm
Parallelism: Up to 10 seconds
Flatness: Up to Lambda 10
Coatings: See coatings section
Materials: Additional grades of Fused Quartz, Optical, drawn & rolled plate & made by other manufacturers