BK7 is an immensely popular borosilicate crown glass, commonly used in optical products. BK7 optical windows provide a physical barrier against dust and other elements, protecting sensitive material.
Specifications
Material
| BK7
|
Dimensional Tolerance
| +/-0.15
|
Thickness Tolerance
| Nominal
|
Surface Quality
| 60/40 Scratch/Dig
|
Coating
| None
|
