BK-7
is typically used in visible light applications and at
1064nm where, among other things, it is useful as a protective
window for YAG lasers.
Optical
Properties - BK-7 Borosilicate
Crown Glass
Transmission
Range: 300nm to 2.0 µm (useful range)
Refractive
Index: 1.50
Physical
Properties - BK-7 Borosilicate
Crown Glass
Hardness
(Knoop): 520 psi
Modulus
of Rupture: 2400
psi
Structure:
Amorphous
Chemical
Properties - BK-7 Borosilicate
Crown Glass
Solubility:
Insoluble in water.
