Products
Spherical Lenses
BK7 Plano-concave Spherical Lenses
Material:BK7
Design Wavelength:632.8nm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.1mm
Surface Accuracy:λ/4@632.8nm
Surface Quality:40-20
Centration:<3'
Clear Aperture:>90%
Bevelling:<0.2×45°
Coating:AR
A:350-650nm
B:650-1050nm
C:1050-1580nm
A:350-650nm
B:650-1050nm
C:1050-1580nm
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BK7 Plano-concave Spherical Lenses
| NO. | EFL(mm) | Dia(mm) | Radius(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 11C1035R | -18.00 | 6.00 | -9.27 | 2.00 | 2.50 | -19.32 |
| 11C1975R | -24.00 | 6.00 | -12.36 | 2.00 | 2.40 | -25.32 |
| 11C1906R | -27.00 | 9.00 | -13.91 | 2.00 | 2.70 | -28.32 |
| 11C1054R | -25.00 | 12.70 | -12.88 | 3.00 | 4.70 | -26.98 |
| 11C1060R | -30.00 | 12.70 | -15.45 | 3.00 | 4.40 | -31.98 |
| 11C1439R | -50.00 | 12.70 | -25.75 | 3.50 | 4.30 | -52.31 |
| 11C1259R | -50.00 | 25.00 | -25.75 | 3.50 | 6.70 | -52.31 |
| 11C1258R | -75.00 | 25.00 | -38.63 | 3.50 | 5.60 | -77.31 |
| 11C1254R | -100.00 | 25.00 | -51.51 | 4.00 | 5.50 | -102.64 |
| 11C1715R | -50.00 | 25.40 | -25.75 | 3.50 | 6.90 | -52.31 |
| 11C1582R | -75.00 | 25.40 | -38.63 | 3.50 | 5.60 | -77.31 |
| 11C1120R | -100.00 | 25.40 | -51.51 | 4.00 | 5.60 | -102.64 |
| 11C1315R | -75.00 | 50.80 | -38.63 | 3.50 | 13.00 | -77.31 |
| 11C1093R | -100.00 | 50.80 | -51.51 | 4.00 | 10.70 | -102.64 |
| NO. | EFL(mm) | Dia(mm) | Radius(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 11C1611R | -150.00 | 50.80 | -77.26 | 4.00 | 8.30 | -152.64 |
