BK7 is a borosilicate crown optical glass with high homogeneity, low bubble and inclusion
content. Its good physical and chemical properties
make it widely used in visible and near IR range.
Most of windows, lenses and prisms, which used in
laser, optical system, optical communication, are
made from BK7 glass.
- Transmission range: 330 nm~2100 nm
- Thermal Expansion Coefficient: 7.5X10-6
- Density: 2.51 g/cm3