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Spherical Bi-Convex Lenses
CaF2 BaF2 MgF2 LiF FS
BK-7 Si Ge ZnS ZnSe
   
  Material   Germanium
  Surface figure   3 Lambda at 633 nm per inch
  Scratch-Dig   60 - 40
  Diameter   tolerance   ± 0.1 mm
  Paraxial
  Focal Length   Tolerance 		  ± 2%
  Centration   less than 5 arc minutes
  Clear aperture   90%
  Bevels   (0.2+0.3)mm x 45°
   
D, mm FLx, mm R, mm tc, mm temin, mm Part Number
12.7 25.0 149.14 2.3 2.0 BCX14-01
12.7 50.0 299.20 2.1 2.0 BCX14-02
25.4 25.0 148.84 3.1 2.0 BCX14-03
25.4 50.0 299.04 2.5 2.0 BCX14-04
25.4 75.0 449.14 2.4 2.0 BCX14-05
25.4 100 599.14 2.3 2.0 BCX14-06
25.4 150.0 899.20 2.2 2.0 BCX14-07
25.4 200.0 1199.18 2.1 2.0 BCX14-08
25.4 250.0 1499.18 2.1 2.0 BCX14-09
50.8 50.0 298.06 5.2 3.0 BCX14-10
50.8 100 598.44 4.1 3.0 BCX14-11
50.8 150.0 898.58 3.7 3.0 BCX14-12
50.8 200.0 1198.70 3.5 3.0 BCX14-13
50.8 250.0 1498.70 3.4 3.0 BCX14-14
50.8 500.0 2998.78 3.2 3.0 BCX14-15
           

* Numerical parameters correspond to Lambda=10.6 µm (n=4)
 
     
 

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