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
Products relative
Steel
Stainless steel
Aluminum
borosilicate glass