Windows: BK7 | Fused Silica | Sapphire | CaF2 | MgF2
Windows | BK7 Windows
High Precision BK7 Windows
Specifications
Material: BK7 grade A or equivalent optical glass
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.2mm
Clear Aperture: >80%
Parallelism: see the table
Surface Quality: 20-10 scratch and dig
Wavefront Distortion: l/10
per 25mm
Protective Bevel
| f(mm) | T(mm) | 1’ Parallelism | 10” Parallelism |
|---|---|---|---|
| Part No | Part No | ||
10.0 |
6.0 |
WNH0201 |
WNH0211 |
12.7 |
6.0 |
WNH0202 |
WNH0212 |
25.0 |
6.0 |
WNH0203 |
WNH0213 |
25.4 |
6.35 |
WNH0204 |
WNH0214 |
30.0 |
6.0 |
WNH0205 |
WNH0215 |
50.0 |
10.0 |
WNH0306 |
WNH0316 |
Standard BK7 Windows
Specifications
Material: BK7 grade
A or equivalent optical glass
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.2mm
Clear Aperture: >80%
Parallelism: 1'
Surface Quality: 60-40 scratch and dig
Wavefront Distortion: l per 25mm
Protective Bevel
| Part No | f (mm) | T (mm) |
|---|---|---|
WNL0101 |
10.0 |
3.0 |
WNL0102 |
12.7 |
3.0 |
WNL0107 |
15.0 |
1.0 |
WNL0108 |
15.0 |
3.0 |
WNL0103 |
25.0 |
3.0 |
WNL0104 |
25.4 |
3.0 |
WNL0105 |
30.0 |
3.0 |
WNL0106 |
50.0 |
3.0 |
WNL0109 |
50.8 |
6.35 |