Products
Spherical Lenses
BK7 Negative Meniscus 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 Negative Meniscus Spherical Lenses
| NO. | EFL(mm) | Dia(mm) | Radius(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 11F1822R | -100.00 | 25.40 | （R1）33.65（R2）100.00 | 3.00 | 4.70 | -103.03 |
| 11F1510R | -125.00 | 25.40 | （R1）38.77（R2）100.00 | 3.00 | 4.30 | -128.29 |
| 11F1547R | -150.00 | 25.40 | （R1）43.14（R2）100.00 | 3.00 | 4.10 | -153.55 |
| 11F1097R | -200.00 | 25.40 | （R1）50.23（R2）100.00 | 3.00 | 3.80 | -204.06 |
| 11F1774R | -250.00 | 25.40 | （R1）55.71（R2）100.00 | 3.00 | 3.70 | -254.58 |
| 11F1015R | -300.00 | 25.40 | （R1）95.11（R2）250.00 | 3.00 | 3.50 | -303.22 |
| 11F1544R | -400.00 | 25.40 | （R1）112.49（R2）250.00 | 3.00 | 3.40 | -403.63 |
| 11F1988R | -500.00 | 25.40 | （R1）126.34（R2）250.00 | 3.00 | 3.30 | -504.04 |
| 11F1141R | -1000.00 | 25.40 | （R1）253.20（R2）500.00 | 3.00 | 3.20 | -1004.03 |
| 11F1764R | -100.00 | 50.80 | （R1）40.61（R2）200.00 | 5.00 | 12.30 | -104.19 |
| 11F1736R | -125.00 | 50.80 | （R1）48.29（R2）200.00 | 5.00 | 10.60 | -129.40 |
| 11F1829R | -150.00 | 50.80 | （R1）55.21（R2）200.00 | 5.50 | 9.60 | -155.08 |
| 11F1338R | -200.00 | 50.80 | （R1）67.42（R2）200.00 | 5.00 | 8.40 | -205.04 |
| 11F1269R | -250.00 | 50.80 | （R1）77.67（R2）200.00 | 5.00 | 7.70 | -255.47 |
| NO. | EFL(mm) | Dia(mm) | Radius(mm) | Tc(mm) | Te(mm) | BFL(mm) |
| 11F1129R | -300.00 | 50.80 | （R1）101.41（R2）300.00 | 5.00 | 7.20 | -305.03 |
| 11F1115R | -400.00 | 50.80 | （R1）121.46（R2）300.00 | 5.00 | 6.60 | -405.60 |
| 11F1089R | -500.00 | 50.80 | （R1）137.79（R2）300.00 | 5.00 | 6.30 | -506.17 |
| 11F1591R | -1000.00 | 50.80 | （R1）252.85（R2）500.00 | 5.00 | 5.60 | -1006.72 |
