BK7 Bi-convex 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 Bi-convex Spherical Lenses
| NO. | Dia | EFL | R1=R2 | Tc | Te | BFL |
| 11B1157R | 6.00 | 10.00 | 9.88 | 2.40 | 1.50 | 9.17 |
| 11B1406R | 6.00 | 12.00 | 11.96 | 2.30 | 1.50 | 11.22 |
| 11B1987R | 6.00 | 15.00 | 15.09 | 2.10 | 1.50 | 14.29 |
| 11B1198R | 6.00 | 30.00 | 30.60 | 1.80 | 1.50 | 29.40 |
| 11B1494R | 9.00 | 12.00 | 11.72 | 3.60 | 1.80 | 10.75 |
| 11B1212R | 9.00 | 20.00 | 20.12 | 2.80 | 1.80 | 19.05 |
| 11B1092R | 12.70 | 15.00 | 14.61 | 4.70 | 1.80 | 13.36 |
| 11B1450R | 12.70 | 20.00 | 19.92 | 3.90 | 1.80 | 18.67 |
| 11B1014R | 12.70 | 25.00 | 25.16 | 3.40 | 1.80 | 23.85 |
| 11B1258R | 12.70 | 30.00 | 30.37 | 3.10 | 1.80 | 28.96 |
| 11B1378R | 12.70 | 40.00 | 40.73 | 2.80 | 1.80 | 39.07 |
| 11B1844R | 12.70 | 50.00 | 51.06 | 2.60 | 1.80 | 49.13 |
| 11B1187R | 12.70 | 100.00 | 102.64 | 2.20 | 1.80 | 99.27 |
| 11B1761R | 25.40 | 25.40 | 24.53 | 9.00 | 1.90 | 22.23 |
| 11B1757R | 25.40 | 30.00 | 29.54 | 7.70 | 2.00 | 27.34 |
| NO. | Dia | EFL | R | Tc | Te | BFL |
| 11B1811R | 25.40 | 35.00 | 34.86 | 6.80 | 2.20 | 32.68 |
| 11B1027R | 25.40 | 40.00 | 40.14 | 6.10 | 2.00 | 37.93 |
| 11B1471R | 25.40 | 50.00 | 50.61 | 5.20 | 2.00 | 48.25 |
| 11B1596R | 25.40 | 60.00 | 61.00 | 4.70 | 2.00 | 58.43 |
| 11B1901R | 25.40 | 75.00 | 76.56 | 4.10 | 2.00 | 73.63 |
| 11B1676R | 25.40 | 100.00 | 102.40 | 3.60 | 2.00 | 98.81 |
| 11B1904R | 25.40 | 125.00 | 128.21 | 3.30 | 2.00 | 123.91 |
| 11B1437R | 25.40 | 150.00 | 154.00 | 3.10 | 2.00 | 148.97 |
| 11B1294R | 25.40 | 175.00 | 179.79 | 2.90 | 2.00 | 174.04 |
| 11B1945R | 25.40 | 200.00 | 205.56 | 2.80 | 2.00 | 199.07 |
| 11B1056R | 25.40 | 250.00 | 257.10 | 2.60 | 2.00 | 249.14 |
| 11B1779R | 25.40 | 300.00 | 308.63 | 2.50 | 2.00 | 299.17 |
| 11B1391R | 25.40 | 400.00 | 411.66 | 2.40 | 2.00 | 399.21 |
| 11B1869R | 25.40 | 500.00 | 514.70 | 2.30 | 2.00 | 499.24 |
| 11B1475R | 25.40 | 750.00 | 772.26 | 2.20 | 2.00 | 749.27 |
| NO. | Dia | EFL | R | Tc | Te | BFL |
| 11B1409R | 25.40 | 1000.00 | 1029.81 | 2.20 | 2.00 | 999.27 |
| 11B1723R | 50.80 | 60.00 | 59.26 | 14.40 | 3.00 | 55.04 |
| 11B1309R | 50.80 | 75.00 | 75.20 | 11.80 | 3.00 | 71.00 |
| 11B1630R | 50.80 | 100.00 | 101.38 | 9.50 | 3.00 | 96.81 |
| 11B1106R | 50.80 | 125.00 | 127.38 | 8.10 | 3.00 | 122.30 |
| 11B1374R | 50.80 | 150.00 | 153.29 | 7.20 | 3.00 | 147.60 |
| 11B1607R | 50.80 | 175.00 | 179.15 | 6.60 | 3.00 | 172.81 |
| 11B1199R | 50.80 | 200.00 | 204.98 | 6.20 | 3.00 | 197.94 |
| 11B1889R | 50.80 | 250.00 | 256.61 | 5.50 | 3.00 | 248.18 |
| 11B1917R | 50.80 | 300.00 | 308.19 | 5.10 | 3.00 | 298.31 |
| 11B1862R | 50.80 | 400.00 | 411.29 | 4.60 | 3.00 | 398.48 |
| 11B1909R | 50.80 | 500.00 | 514.36 | 4.30 | 3.00 | 498.58 |
| 11B1274R | 50.80 | 750.00 | 771.99 | 3.80 | 3.00 | 748.75 |
| 11B1859R | 50.80 | 1000.00 | 1029.57 | 3.60 | 3.00 | 998.81 |