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Spherical Bi-Convex Lenses
MATERIAL - LiF (Lithium Fluoride)
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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/2 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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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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25.0 |
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15.73 |
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4.7 |
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2,0 |
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BCX4-01 |
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12,7 |
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50.0 |
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32.25 |
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3.3 |
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2,0 |
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BCX4-02 |
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25.4 |
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50.0 |
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31.73 |
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7.3 |
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2,0 |
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BCX4-03 |
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25.4 |
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100 |
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64.76 |
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4.5 |
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2,0 |
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BCX4-04 |
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25,4 |
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150.0 |
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97.53 |
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3.7 |
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2,0 |
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BCX4-05 |
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25,4 |
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200.0 |
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130.24 |
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3.2 |
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2,0 |
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BCX4-06 |
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25,4 |
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250.0 |
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162.93 |
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3.0 |
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2,0 |
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BCX4-07 |
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25,4 |
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500.0 |
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326.29 |
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2.5 |
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2,0 |
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BCX4-08 |
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38.1 |
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75.0 |
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47.60 |
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11.0 |
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3.0 |
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BCX4-09 |
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38.1 |
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125.0 |
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80.71 |
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7.6 |
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3.0 |
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BCX4-10 |
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38.1 |
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200.0 |
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129.92 |
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5.8 |
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3.0 |
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BCX4-11 |
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38.1 |
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375.0 |
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244.40 |
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4.5 |
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3.0 |
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BCX4-12 |
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38,1 |
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750.0 |
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489.44 |
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3.7 |
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3,0 |
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BCX4-13 |
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50.8 |
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100.0 |
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63.60 |
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13.6 |
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3,0 |
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BCX4-14 |
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50.8 |
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150.0 |
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96.76 |
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9.8 |
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3,0 |
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BCX4-15 |
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50.8 |
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200.0 |
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129.65 |
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8.0 |
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3,0 |
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BCX4-16 |
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50.8 |
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250.0 |
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162.44 |
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7.0 |
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3,0 |
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BCX4-17 |
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50.8 |
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300.0 |
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195.18 |
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6.3 |
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3,0 |
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BCX4-18 |
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50.8 |
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400.0 |
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260.60 |
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5.5 |
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3,0 |
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BCX4-19 |
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50,8 |
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500.0 |
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325.99 |
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5.0 |
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3,0 |
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BCX4-20 |
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50,8 |
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750.0 |
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489.37 |
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4.3 |
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3,0 |
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BCX4-21 |
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50,8 |
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1000.0 |
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652.72 |
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4.0 |
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3,0 |
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BCX4-22 |
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76.2 |
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150.0 |
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95.61 |
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18.8 |
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3,0 |
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BCX4-23 |
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76.2 |
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200.0 |
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128.83 |
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14.5 |
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3,0 |
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BCX4-24 |
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76.2 |
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250.0 |
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161.80 |
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12.1 |
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3,0 |
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BCX4-25 |
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76.2 |
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300.0 |
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194.66 |
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10.5 |
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3,0 |
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BCX4-26 |
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76.2 |
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400.0 |
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260.22 |
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8.6 |
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3,0 |
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BCX4-27 |
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76.2 |
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500.0 |
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325.68 |
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7.5 |
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3,0 |
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BCX4-28 |
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76.2 |
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600.0 |
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391.09 |
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6.7 |
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3,0 |
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BCX4-29 |
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76,2 |
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800.0 |
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521.85 |
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5.8 |
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3,0 |
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BCX4-30 |
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76,2 |
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1000.0 |
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652.57 |
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5.2 |
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3,0 |
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BCX4-31 |
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76,2 |
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1500.0 |
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979.25 |
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4.5 |
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3,0 |
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BCX4-32 |
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* Numerical parameters correspond to Lambda=5 µm (n=1.3266)
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