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Spherical Bi-Convex Lenses
MATERIAL - Si (Silicon)
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Crystaltechno LTD makes spherical bi-convex lenses from different types of optical crystals and glasses.
Spherical bi-convex lenses are widely used as short-focusing transfer optics and output optics.
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PARAMETER |
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VALUE |
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Surface figure |
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Lambda at 633 nm per inch |
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Scratch-Dig |
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80 - 50 |
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Diameter tolerance |
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± 0.1 mm |
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Paraxial Focal Length Tolerance |
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± 2% |
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Centration |
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less than 5 arc minutes |
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Clear aperture |
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>80 % |
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Bevels |
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(0.2-0.3) mm x 45° |
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D, mm |
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FL, mm |
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R1=R2, mm |
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tc, mm |
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te, mm |
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Part Number |
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12,7 |
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12,7 |
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60,78 |
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2,7 |
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2,0 |
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BCX13-01 |
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12,7 |
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19,0 |
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91,72 |
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2,4 |
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2,0 |
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BCX13-02 |
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12,7 |
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25,0 |
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120,66 |
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2,3 |
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2,0 |
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BCX13-03 |
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19,05 |
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19,0 |
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91,53 |
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3,0 |
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2,0 |
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BCX13-04 |
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19,05 |
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25,0 |
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120.54 |
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2.8 |
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2,0 |
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BCX13-05 |
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19,05 |
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50,0 |
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242.18 |
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2.4 |
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2,0 |
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BCX13-06 |
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19,05 |
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75,0 |
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363.71 |
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2.2 |
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2,0 |
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BCX13-07 |
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25,4 |
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25,0 |
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120.32 |
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3.3 |
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2,0 |
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BCX13-08 |
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25,4 |
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50,0 |
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242.04 |
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2.7 |
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2,0 |
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BCX13-09 |
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25,4 |
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75,0 |
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363.65 |
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2.4 |
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2,0 |
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BCX13-10 |
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25,4 |
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100,0 |
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485.17 |
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2.3 |
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2,0 |
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BCX13-11 |
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38,1 |
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50.0 |
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241.40 |
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4.5 |
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3,0 |
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BCX13-12 |
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38,1 |
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75.0 |
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363.06 |
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4.0 |
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3,0 |
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BCX13-13 |
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38,1 |
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100,0 |
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484.67 |
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3.7 |
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3,0 |
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BCX13-14 |
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38,1 |
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150,0 |
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727.75 |
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3.5 |
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3,0 |
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BCX13-15 |
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50,8 |
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50,0 |
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240.99 |
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5.7 |
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3,0 |
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BCX13-16 |
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50,8 |
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100,0 |
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484.47 |
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4.3 |
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3,0 |
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BCX13-17 |
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50,8 |
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150,0 |
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727.64 |
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3.9 |
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3,0 |
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BCX13-18 |
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50,8 |
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200,0 |
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970.70 |
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3.7 |
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3,0 |
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BCX13-19 |
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50,8 |
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250,0 |
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1213.77 |
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3.5 |
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3,0 |
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BCX13-20 |
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* Numerical parameters correspond to Lambda=4.3 µm (n=3.43)
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