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Spherical Bi-Convex Lenses
MATERIAL - Ge (Germanium)
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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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3 Lambda at 633 nm per inch |
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Scratch-Dig |
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60 - 40 |
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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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90 % |
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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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FLx, mm |
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R1=R2, mm |
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tc, mm |
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temin, mm |
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Part Number |
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12,7 |
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25.0 |
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149.14 |
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2.3 |
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2,0 |
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BCX14-01 |
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12,7 |
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50.0 |
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299.20 |
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2.1 |
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2,0 |
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BCX14-02 |
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25.4 |
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25,0 |
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148.84 |
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3.1 |
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2,0 |
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BCX14-03 |
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25.4 |
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50,0 |
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299.04 |
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2.5 |
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2,0 |
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BCX14-04 |
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25,4 |
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75.0 |
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449.14 |
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2.4 |
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2,0 |
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BCX14-05 |
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25,4 |
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100 |
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599.14 |
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2.3 |
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2,0 |
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BCX14-06 |
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25,4 |
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150.0 |
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899.20 |
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2.2 |
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2,0 |
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BCX14-07 |
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25,4 |
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200.0 |
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1199.18 |
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2.1 |
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2,0 |
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BCX14-08 |
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25,4 |
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250.0 |
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1499.18 |
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2.1 |
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2,0 |
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BCX14-09 |
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50.8 |
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50.0 |
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298.06 |
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5.2 |
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3,0 |
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BCX14-10 |
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50.8 |
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100 |
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598.44 |
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4.1 |
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3,0 |
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BCX14-11 |
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50.8 |
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150.0 |
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898.58 |
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3.7 |
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3,0 |
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BCX14-12 |
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50.8 |
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200.0 |
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1198.70 |
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3.5 |
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3,0 |
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BCX14-13 |
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50.8 |
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250.0 |
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1498.70 |
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3.4 |
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3,0 |
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BCX14-14 |
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50.8 |
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500.0 |
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2998.78 |
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3.2 |
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3,0 |
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BCX14-15 |
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* Numerical parameters correspond to Lambda=10.6 µm (n=4)
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