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Spherical Plano-Convex Lenses
BK-7 KBr Si Ge ZnS ZnSe
CaF2 BaF2 MgF2 LiF Al2O3 FS
   
  Material   Magnesium  Fluoride 
  Surface figure   Lambda/2 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 te, mm Part Number
12,7 25,0 8,5 4,8 2,0 PCX3-01
12,7 50,0 17,0 3,2 2,0 PCX3-02
25,4 50,0 17,0 7,7 2,0 PCX3-03
25,4 100,0 34,0 4,5 2,0 PCX3-04
25,4 150,0 51,0 3,6 2,0 PCX3-05
25,4 200,0 68,0 3,2 2,0 PCX3-06
25,4 250,0 85,0 3,0 2,0 PCX3-07
25,4 500,0 170,0 2,5 2,0 PCX3-08
38,1 76,0 25,8 11,4 3,0 PCX3-09
38,1 125,0 42,5 7,5 3,0 PCX3-10
38,1 200,0 68,0 5,7 3,0 PCX3-11
38,1 375,0 127,5 4,4 3,0 PCX3-12
38,1 750,0 255,0 3,7 3,0 PCX3-13

* Numerical parameters correspond to Lambda=5 µm (n=1.34)
 
     
 

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