| BK7 Bi-concave Lens | Download catalog |
| ·BK7 Plano-convex Lens | ·BK7 Bi-convex Lens | ·BK7 Plano-concave Lens |
| ·BK7 Bi-concave Lens | ·BK7 Positive Meniscus Lens | ·BK7 Negative Meniscus Lens |
| BK7 Bi-concave Lens |
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 Material:BK7 grade optical glass Design Wavelength:633nm Focal Length Tolerance:+/-1% Diameter Tolerance:+0.0,-0.1mm Center Thickness(Tc):+/-0.1mm Surface Figure:λ/4@632.8nm Scratch/Dig:40-20 Centration:<3arc minutes Clear Aperture:>90% Protective Bevelling Coating:none,A type,B type,C type |
BK7 Bi-concave Lens |
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NO.
GLC1035 GLC1975 GLC1906 GLC1054 GLC1060 GLC1439 GLC1715 GLC1582 GLC1120 GLC1315 GLC1093 GLC1611 EFL(mm)
-18.00 -24.00 -27.00 -25.00 -30.00 -50.00 -50.00 -75.00 -100.00 -75.00 -100.00 -150.00 Dia(mm)
6.0
6.0 9.0 12.7 12.7 12.7 25.4 25.4 25.4 50.8 50.8 50.8 R(mm)
-9.26 -12.35 -13.90 -12.87 -15.44 -25.73 -25.73 -38.60 -51.47 -38.60 -51.47 -77.20 BFL(mm)
-19.32 -25.32 -28.32 -26.98 -31.98 -52.31 -52.31 -77.31 -102.64 -77.31 -102.64 -152.64 Tc(mm)
-19.32 -25.32 -28.32 -26.98 -31.98 -52.31 -52.31 -77.31 -102.64 -77.31 -102.64 -152.64 Te(mm)
2.5 2.4 2.7 4.7 4.4 4.3 6.9 5.6 5.6 13.0 10.7 8.3 |
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