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BK-7 Borosilicate Crown Glass

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 Ám (useful range)
Refractive Index: 1.50

Physical Properties - BK-7 Borosilicate Crown Glass

Hardness (Knoop): 520 kg/mm2
Modulus of Rupture: 2400 psi
Structure: Amorphous

Chemical Properties - BK-7 Borosilicate Crown Glass

Solubility: Insoluble in water.