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Spherical Bi-Convex Lenses
CaF2 BaF2 MgF2 LiF FS
BK-7 Si Ge ZnS ZnSe
 
  Material   Silicon 
  Surface figure   Lambda at 633 nm per inch
  Scratch-Dig   80 - 50
  Diameter   tolerance   ± 0.1 mm
  Paraxial
  Focal Length   Tolerance 		  ± 2%
  Centration   less than 5 arc minutes
  Clear aperture   > 80%
  Bevels   (0.2+0.3)mm x 45°
   
D, mm FLx, mm R, mm tc, mm te, mm Part Number
12.7 12.7 60.78 2.7 2.0 BCX13-01
12.7 19.0 91.72 2.4 2.0 BCX13-02
12.7 25.0 120.66 2.3 2.0 BCX13-03
19.05 19.0 91.53 3.0 2.0 BCX13-04
19.05 25.0 120.54 2.8 2.0 BCX13-05
19.05 50.0 242.18 2.4 2.0 BCX13-06
19.05 75.0 363.71 2.2 2.0 BCX13-07
25.4 25.0 120.32 3.3 2.0 BCX13-08
25.4 50.0 242.04 2.7 2.0 BCX13-09
25.4 75.0 363.65 2.4 2.0 BCX13-10
25.4 100 485.17 2.3 2.0 BCX13-11
38.1 50.0 241.40 4.5 3.0 BCX13-12
38.1 75.0 363.06 4.0 3.0 BCX13-13
38.1 100.0 484.67 3.7 3.0 BCX13-14
38.1 150.0 727.75 3.5 3.0 BCX13-15
50.8 50.0 240.99 5.7 3.0 BCX13-16
50.8 100.0 484.47 4.3 3.0 BCX13-17
50.8 150.0 727.64 3.9 3.0 BCX13-18
50.8 200.0 970.70 3.7 3.0 BCX13-19
50.8 250.0 1213.77 3.5 3.0 BCX13-20
* Numerical parameters correspond to Lambda=4.3 µm (n=3.43)
 
     
 

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