BSC6 by Hoya

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Optical Properties
Refractive Index (nd) 1.531128
Abbe Number (Vd) 62.075664
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.31283 - 0.00938604\,\lambda^2 + 0.01122\,\lambda^{-2} + 0.000329066\,\lambda^{-4} - 2.5008 \times 10^{-5}\,\lambda^{-6} + 1.51895 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K)
TCE 100/300°C (10-6/K)
Thermal Conductivity (W/mK)
Heat Capacity (J/gK)
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³)
Relative Cost
Mechanical Properties
Young's Modulus (GPa)
Poisson's Ratio
Knoop Hardness (kgf/mm²)
Chemical Resistance
Climatic Resistance
Stain Resistance
Acid Resistance
Alkali Resistance
Phosphate Resistance
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
BK6 Schott 1.531129 62.150728
K-PBK60 Sumita 1.5274 62.3
K-PBK60(M) Sumita 1.52483 62.0
K-PBK50 Sumita 1.5225 62.3
K-PG375(M) Sumita 1.53922 62.7
K-PBK50(M) Sumita 1.52025 62.2
H-BAK1 CDGM 1.53028 60.466139
K-PG375 Sumita 1.5425 62.9
B19-61 Corning 1.519061 61.386004
H-K90GTI CDGM 1.51948 63.291634
Similar Glasses (Hoya)
Glass Manufacturer nd Vd
C40 Hoya 1.523 60.4016
BACL1 Hoya 1.526417 60.113677
BACL3 Hoya 1.518351 60.396486
BAC2 Hoya 1.539961 59.721586
PC3 Hoya 1.52542 64.619542
C5 Hoya 1.522488 59.447258
BSC7 Hoya 1.5168 64.2
C7 Hoya 1.511122 60.485929
BSC1 Hoya 1.510091 63.435118
PCD3 Hoya 1.55232 63.424095
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