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Home > Optical Windows > BK7 Optical Windows
Material:BK7 grade A optical glass
Dimension Tolerance: +0.0,-0.1mm
Thickness Tolerance: ±0.1mm
Parallelism:30 arc seconds—1 arc min
Surface Quality:10/5 — 60/40
Surface Flatness:λ/10 — λ/2
Clear Aperture:>85% of diameter
Bevel:<0.25mm x 45°
Coating:Specified by customer
Material:BK7 grade A optical glass
Dimension Tolerance: +0.0,-0.1mm
Thickness Tolerance: ±0.1mm
Parallelism:30 arc seconds—1 arc min
Surface Quality:10/5 — 60/40
Surface Flatness:λ/10 — λ/2
Clear Aperture:>85% of diameter
Bevel:<0.25mm x 45°
Coating:Specified by customer
| BK7 Round Optical Windows |  |
Material:BK7 grade A optical glass Dimension Tolerance: +0.0,-0.1mm Thickness Tolerance: ±0.1mm Parallelism:30 arc seconds—1 arc min Surface Quality:10/5 — 60/40 Surface Flatness:λ/10 — λ/2 Clear Aperture:>85% of diameter Bevel:<0.25mm x 45° Coating:Specified by customer| BK7 Round Optical Windows | ||
| Part No. | Dia(mm) | T(mm) |
| RW0602-BK7 | 6.00 | 2.00 |
| RW1003-BK7 | 10.00 | 3.00 |
| RW1203-BK7 | 12.70 | 3.00 |
| RW1503-BK7 | 15.00 | 3.00 |
| RW2003-BK7 | 20.00 | 3.00 |
| RW2503-BK7 | 25.40 | 3.00 |
| RW3005-BK7 | 30.00 | 5.00 |
| RW3805-BK7 | 38.10 | 5.00 |
| RW5005-BK7 | 50.80 | 5.00 |
| RW7510-BK7 | 75.00 | 10.00 |
| RW1015-BK7 | 100.00 | 12.00 |
| RW1520-BK7 | 150.00 | 20.00 |
| BK7 Square Optical Windows |  |
Material:BK7 grade A optical glass Dimension Tolerance: +0.0,-0.1mm Thickness Tolerance: ±0.1mm Parallelism:30 arc seconds—1 arc min Surface Quality:10/5 — 60/40 Surface Flatness:λ/10 — λ/2 Clear Aperture:>85% of diameter Bevel:<0.25mm x 45° Coating:Specified by customer| BK7 Square Optical Windows | |||
| Part No. | L(mm) | H(mm) | T(mm) |
| SW1003-BK7 | 10.00 | 10.00 | 3.00 |
| SW1203-BK7 | 12.70 | 12.70 | 3.00 |
| SW1503-BK7 | 15.00 | 15.00 | 3.00 |
| SW2003-BK7 | 20.00 | 20.00 | 3.00 |
| SW2503-BK7 | 25.40 | 25.40 | 3.00 |
| SW3005-BK7 | 30.00 | 30.00 | 5.00 |
| SW3805-BK7 | 38.10 | 38.10 | 5.00 |
| SW5005-BK7 | 50.00 | 50.00 | 5.00 |
| SW7510-BK7 | 75.00 | 75.00 | 10.00 |
| SW0115-BK7 | 100.00 | 100.00 | 15.00 |
| SW5120-BK7 | 150.00 | 150.00 | 20.00 |