BK7 Positive 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
B:650-1050nm C:1050-1580nm
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BK7 Positive Meniscus Spherical Lenses
| NO. | Dia | EFL | R1 | R2 | Tc | Te | BFL |
| 11E1234R | 25.40 | 100.00 | 32.14 | 82.20 | 3.60 | 2.00 | 96.19 |
| 11E1156R | 25.40 | 125.00 | 40.60 | 106.86 | 3.30 | 2.00 | 121.55 |
| 11E1104R | 25.40 | 150.00 | 49.10 | 131.81 | 3.10 | 2.00 | 146.78 |
| 11E1202R | 25.40 | 200.00 | 66.20 | 182.57 | 2.80 | 2.00 | 197.12 |
| 11E1157R | 25.40 | 250.00 | 83.40 | 234.19 | 2.60 | 2.00 | 247.35 |
| 11E1929R | 25.40 | 300.00 | 100.90 | 288.30 | 2.50 | 2.00 | 297.47 |
| 11E1872R | 25.40 | 400.00 | 136.50 | 402.03 | 2.40 | 2.00 | 397.61 |
| 11E1261R | 25.40 | 500.00 | 172.90 | 523.70 | 2.30 | 2.00 | 497.74 |
| 11E1458R | 25.40 | 1000.00 | 371.60 | 1331.26 | 2.20 | 2.00 | 997.99 |
| 11E1076R | 50.80 | 100.00 | 30.34 | 65.80 | 9.70 | 1.10 | 89.13 |
| 11E1527R | 50.80 | 125.00 | 39.20 | 93.08 | 8.20 | 2.40 | 116.11 |
| 11E1418R | 50.80 | 150.00 | 47.90 | 119.51 | 7.30 | 2.70 | 142.23 |
| 11E1015R | 50.80 | 200.00 | 65.20 | 171.87 | 6.20 | 2.90 | 193.53 |
| 11E1613R | 50.80 | 250.00 | 82.54 | 224.69 | 5.50 | 3.00 | 244.34 |
| 11E1985R | 50.80 | 300.00 | 100.10 | 279.28 | 5.10 | 3.00 | 294.80 |
| 11E1359R | 50.80 | 400.00 | 135.80 | 393.38 | 5.00 | 3.40 | 394.99 |
| 11E1153R | 50.80 | 500.00 | 172.30 | 515.42 | 5.00 | 3.70 | 495.07 |
| 11E1834R | 50.80 | 1000.00 | 371.50 | 1326.56 | 5.00 | 4.40 | 995.42 |