H-BAF6 by CDGM

Standard Medium Environmentally Friendly

H-BAF6 by CDGM is a standard optical glass with a medium melt frequency. It transmits from 0.34 to 2.40 µm with an nd of 1.60801 and a Vd of 46.202418. It has medium thermal expansion (CTE of 8.2×10⁻⁶/K), excellent chemical resistance, and moderate relative cost.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.340–2.400 µm
Optical Properties
Refractive Index (nd) 1.60801
Abbe Number (Vd) 46.202418
Dispersion Formula Sellmeier
Wavelength Range 0.365 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.06475\,\lambda^2}{\lambda^2 - 115.354} + \frac{1.38639\,\lambda^2}{\lambda^2 - 0.00853301} + \frac{0.146161\,\lambda^2}{\lambda^2 - 0.0437435}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.2
TCE 100/300°C (10-6/K) 9.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-3.02 \times 10^{-6} + 2(1.55 \times 10^{-8})\,\Delta T + 3(-1.32 \times 10^{-10})\,\Delta T^2 + \frac{6.09 \times 10^{-7} + 2(9.44 \times 10^{-10})\,\Delta T}{\lambda - 0.233}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.11
Relative Cost 5.7
Mechanical Properties
Young's Modulus (GPa) 77.65
Poisson's Ratio 0.25
Knoop Hardness (kgf/mm²) 538.0
Chemical Resistance
Climatic Resistance 1
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
BAF7 Hoya 1.608013 46.212035
BAF52 Schott 1.608589 46.44241
N-BAF52 Schott 1.60863 46.6
K-LCV161(M) Sumita 1.61477 45.6
ADF4 Hoya 1.612498 44.873885
KZFSN9 Schott 1.598557 46.903842
K-LCV161 Sumita 1.6182 45.3
N-KZFS4HT Schott 1.61336 44.49
N-KZFS4 Schott 1.61336 44.49
C13-44 Corning 1.613394 44.386543
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
TF3 CDGM 1.612423 44.093486
H-TF3L CDGM 1.6134 44.107022
BAF5 CDGM 1.605623 43.890292
H-BAF5 CDGM 1.60562 43.875621
BAF4 CDGM 1.582712 46.505886
H-BAF4 CDGM 1.58267 46.597786
ZBAF2 CDGM 1.639616 48.230454
QF5 CDGM 1.582153 42.039634
BAF2 CDGM 1.569703 49.435926
H-BAF2 CDGM 1.5697 49.452646
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