Material

  Borosilicate Crown Glass 

  Flatness

  Lambda at 633 nm per inch

  Scratch-Dig

  60 - 40

  Wedge angle

  12,5' ± 30 "

  Diameter   tolerance

  ± 0.2 mm

  Thickness

  ± 0.1 mm

  Clear aperture

  90%

  Bevels

  0.3 x 45°C

Diameter, mm

Thickness, mm

Part Number

90.0

3.0

WW9-35

Other sizes are available by special order.