BAF23 by Hoya

Obsolete Unknown Environmentally Dangerous

BAF23 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.652238 and a Vd of 44.922169. It has dangerous environmental properties.

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.

Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.652238
Abbe Number (Vd) 44.922169
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.67022 - 0.00996715\,\lambda^2 + 0.0198377\,\lambda^{-2} + 0.000724794\,\lambda^{-4} - 2.62639 \times 10^{-5}\,\lambda^{-6} + 2.86461 \times 10^{-6}\,\lambda^{-8}}$$
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 Compare
BAF51 Schott 1.652242 44.930457
N-BAF51 Schott 1.65224 44.96
C48-46 Corning 1.647747 46.227993
BAM12 Ohara 1.6393 44.878032
S-BAM12 Ohara 1.6393 44.872804
BAF12 Sumita 1.6393 45.0
BAF13 Schott 1.668919 44.961828
BAH13 Ohara 1.668921 44.987354
BAF13 Sumita 1.66892 45.0
K-LCV93(M) Sumita 1.66355 47.2
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
ATF4 Hoya 1.653757 44.723072
BAF12 Hoya 1.639302 45.070071
BAF13 Hoya 1.668916 44.911265
BAF9 Hoya 1.643278 47.941673
BAF10 Hoya 1.67003 47.2
BAFD6 Hoya 1.66755 41.933458
BAF11 Hoya 1.66672 48.3
BAF22 Hoya 1.682496 44.671672
ADF355 Hoya 1.6445 40.762285
BAF21 Hoya 1.66422 48.941939
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