Borosilicate Glass “H-3-G1” with High Transmission
“H-3-G1” borosilicate glass is high transparent grade glass of “H-3”.
Customized for press molding, “H-3-G1” has excellent moldability and shape processability. Due to its excellent moldability, it is used for various lenses made by OGC direct press molding.
“H-3-G1” can also be used as a pre-form material for precision glass molded glass lens as “H-3-G1” has a coefficient of expansion close to that of cemented carbide, which is used for mold material.
We can provide customized shape and size. Please feel free to contact us.
・ Refractive index: nd 1.492
・ Distribution: vd 64.70
・ Coefficient of thermal expansion: 53×10-7 / K
・ Glass transition point: 490 ℃
・ Young’s modulus: 69GPa