BK7 is an excellent general purpose material widely used in visible and NIR optical components. BK7 is a borosilicate crown optical glass.
- Transmission Range: 330 nm~2100 nm
- Thermal Expansion Coefficient: 7.5X10-6 /K
- Density: 2.52 g/cm3
Note: Other optical material can also be provided by Union Optic, please contact us for details.