BK7 Round Windows
Material: BK7
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.1mm
Surface Accuracy:λ/4@632.8 nm
Surface Quality:40-20
Parallelism:<1'
Clear Aperture:>90%
Bevelling:<0.2×45°
Coating:AR A:350nm-650nm AR B:650nm-1050nm
AR C:1050nm-1580nm
AR C:1050nm-1580nm
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BK7 Round Windows
| NO. | Dia | T |
| 31W00603R | 6.00 | 3.00 |
| 31W01203R | 12.70 | 3.00 |
| 31W01205R | 12.70 | 5.00 |
| 31W01503R | 15.00 | 3.00 |
| 31W01505R | 15.00 | 5.00 |
| 31W02003R | 20.00 | 3.00 |
| 31W02005R | 20.00 | 5.00 |
| 31W02503R | 25.40 | 3.00 |
| 31W02505R | 25.40 | 5.00 |
| 31W03005R | 30.00 | 5.00 |
| 31W04008R | 40.00 | 8.00 |
| 31W05008R | 50.80 | 8.00 |
| 31W07505R | 75.00 | 5.00 |
| 31W07510R | 75.00 | 10.00 |
| 31W10012R | 100.00 | 12.00 |