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BK-7 NaCl KCl KBr Si Ge GaAs ZnSe ZnS
CaF2 MgF2 LiF KRS-5 KRS-6 Al2O3 FS Quartz
 
  Material   Calcium  Fluoride 
  Flatness   Lambda/2 at 633 nm per inch
  Scratch-Dig   60 - 40
  Size tolerance   ± 0.1 mm
  Parallelizm   less than 5 arc minutes
Diameter, mm
Thickness, mm
Part Number
12.7 2 W1-05
25.4 3 W1-10
38.1 4 W1-15
50.8 6 W1-20
76.2 8 W1-30
101.6 12 W1-40
Sizes up to 400 mm diameter x 60 mm thickness are available by special order.
 

 

 

 

     
   

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