Additional information
| Weight | 10.4 oz |
|---|---|
| Dimensions | 649131626 × 6495772 × 300 mm |
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W1277- S-BSL7 200mm dia x 3.9mm th
$544.00
Product Attributes
Material/Grade: S-BSL7
Diameter: 200.00mm ±0.10mm
Thickness: 3.90mm +0.00/-0.10mm
Metrology Wavelength: 633nm
Clear Aperture (CA): >/=180mm dia central
Reflective Wavefront: Surface Flatness </=0.5 wave over any 10.5mm dia sub aperture within the CA
Parallelism: </= 20 arcseconds
Bevel(s): 0.35mm MAX x 45 degrees LL
Chips: CA free of chips and fractures
Cosmetics: 40/20
Edge Finish: Fine Edge Ground
Roughness: <7A Ra, w/ BE for <4A Ra measured w/20X objective
Semi-Notch: yes
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