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Home > Spherical Lens > BK7 Bi-convex Lens
Material:BK7 grade A optical glass
Design Wavelength:632.8nm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0,-0.1mm
Center Thickness:±0.1mm
Surface Figure:λ/4@632.8nm
Surface Quality:40-20 scratch and dig
Centration:3 arc minutes
Clear Aperture:>90%
Bevel:<0.25mm x 45°
Coating:Specified by customer
| BK7 Bi-convex Lens |  |
Material:BK7 grade A optical glass Design Wavelength:632.8nm Focal Length Tolerance:±1% Diameter Tolerance:+0.0,-0.1mm Center Thickness:±0.1mm Surface Figure:λ/4@632.8nm Surface Quality:40-20 scratch and dig Centration:3 arc minutes Clear Aperture:>90% Bevel:<0.25mm x 45° Coating:Specified by customer| BK7 Bi-convex Lens | ||||||
| Part No. | Dia(mm) | EFL(mm) | R(mm) | CT(mm) | ET(mm) | BFL(mm) |
| DXK06010 | 6.00 | 10.00 | 9.88 | 2.40 | 1.50 | 9.18 |
| DXK06012 | 6.00 | 12.00 | 11.96 | 2.30 | 1.50 | 11.22 |
| DXK06015 | 6.00 | 15.00 | 15.09 | 2.10 | 1.50 | 14.29 |
| DXK06030 | 6.00 | 30.00 | 30.60 | 1.80 | 1.50 | 29.40 |
| DXK09012 | 9.00 | 12.00 | 11.72 | 3.60 | 1.80 | 10.75 |
| DXK09020 | 9.00 | 20.00 | 20.12 | 2.80 | 1.80 | 19.06 |
| DXK12015 | 12.70 | 15.00 | 14.61 | 4.70 | 1.80 | 13.36 |
| DXK12020 | 12.70 | 20.00 | 19.92 | 3.90 | 1.80 | 18.67 |
| DXK12025 | 12.70 | 25.00 | 25.16 | 3.40 | 1.80 | 23.85 |
| DXK12030 | 12.70 | 30.00 | 30.37 | 3.10 | 1.80 | 28.96 |
| DXK12040 | 12.70 | 40.00 | 40.73 | 2.80 | 1.80 | 39.07 |
| DXK12050 | 12.70 | 50.00 | 51.06 | 2.60 | 1.80 | 49.14 |
| DXK12100 | 12.70 | 100.00 | 102.64 | 2.20 | 1.80 | 99.27 |
| DXK25025 | 25.40 | 25.00 | 24.12 | 9.00 | 1.90 | 21.83 |
| DXK25030 | 25.40 | 30.00 | 29.54 | 7.70 | 2.00 | 27.34 |
| DXK25035 | 25.40 | 35.00 | 34.86 | 6.80 | 2.20 | 32.68 |
| DXK25040 | 25.40 | 40.00 | 40.14 | 6.10 | 2.00 | 37.93 |
| DXK25050 | 25.40 | 50.00 | 50.61 | 5.20 | 2.00 | 48.25 |
| DXK25060 | 25.40 | 60.00 | 61.00 | 4.70 | 2.00 | 58.43 |
| DXK25075 | 25.40 | 75.00 | 76.56 | 4.10 | 2.00 | 73.63 |
| DXK25100 | 25.40 | 100.00 | 102.40 | 3.60 | 2.00 | 98.80 |
| DXK25125 | 25.40 | 125.00 | 128.21 | 3.30 | 2.00 | 123.91 |
| Part No. | Dia(mm) | EFL(mm) | R(mm) | CT(mm) | ET(mm) | BFL(mm) |
| DXK25150 | 25.40 | 150.00 | 154.00 | 3.10 | 2.00 | 148.98 |
| DXK25175 | 25.40 | 175.00 | 179.79 | 2.90 | 2.00 | 174.04 |
| DXK25200 | 25.40 | 200.00 | 205.56 | 2.80 | 2.00 | 199.07 |
| DXK25250 | 25.40 | 250.00 | 257.10 | 2.60 | 2.00 | 249.14 |
| DXK25300 | 25.40 | 300.00 | 308.63 | 2.50 | 2.00 | 299.18 |
| DXK25400 | 25.40 | 400.00 | 411.66 | 2.40 | 2.00 | 399.21 |
| DXK25500 | 25.40 | 500.00 | 514.70 | 2.30 | 2.00 | 499.24 |
| DXK25750 | 25.40 | 750.00 | 772.26 | 2.20 | 2.00 | 749.27 |
| DXK25110 | 25.40 | 1000.00 | 1029.81 | 2.20 | 2.00 | 999.27 |
| DXK50060 | 50.80 | 60.00 | 59.26 | 14.40 | 3.00 | 55.05 |
| DXK50075 | 50.80 | 75.00 | 75.20 | 11.80 | 3.00 | 71.00 |
| DXK50100 | 50.80 | 100.00 | 101.38 | 9.50 | 3.00 | 96.82 |
| DXK50125 | 50.80 | 125.00 | 127.38 | 8.10 | 3.00 | 122.30 |
| DXK50150 | 50.80 | 150.00 | 153.29 | 7.20 | 3.00 | 147.60 |
| DXK50175 | 50.80 | 175.00 | 179.15 | 6.60 | 3.00 | 172.81 |
| DXK50200 | 50.80 | 200.00 | 204.98 | 6.20 | 3.00 | 197.95 |
| DXK50250 | 50.80 | 250.00 | 256.61 | 5.50 | 3.00 | 248.18 |
| DXK50300 | 50.80 | 300.00 | 308.18 | 5.10 | 3.00 | 298.31 |
| DXK50400 | 50.80 | 400.00 | 411.29 | 4.60 | 3.00 | 398.48 |
| DXK50500 | 50.80 | 500.00 | 514.36 | 4.30 | 3.00 | 498.58 |
| DXK50750 | 50.80 | 750.00 | 771.99 | 3.80 | 3.00 | 748.75 |
| DXK50110 | 50.80 | 1000.00 | 1029.57 | 3.60 | 3.00 | 998.81 |