BAFL2 by Hoya

Obsolete Unknown Environmentally Dangerous

BAFL2 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.570989 and a Vd of 50.858935. 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) 1.570989
Abbe Number (Vd) 50.858935
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.42187 - 0.00721893\,\lambda^2 + 0.0163138\,\lambda^{-2} + 7.29017 \times 10^{-5}\,\lambda^{-4} + 3.41825 \times 10^{-5}\,\lambda^{-6} - 1.04824 \times 10^{-6}\,\lambda^{-8}}$$
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
S-BAL2 Ohara 1.570989 50.799858
BAL2 Ohara 1.570989 50.797474
H-BAF2 CDGM 1.5697 49.452646
BAF2 CDGM 1.569703 49.435926
S-BAL3 Ohara 1.571351 52.952106
BAL3 Ohara 1.571351 52.968158
BALF3 Sumita 1.57135 53.0
BAL7 Ohara 1.58875 51.179278
B58-53 Corning 1.557511 52.533062
BALF50 Schott 1.588931 51.371228
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
BAF2 Hoya 1.56965 49.392725
BAFL3 Hoya 1.571348 52.982526
ADF1 Hoya 1.564997 52.958253
SBF1 Hoya 1.551151 49.517289
BAFL4 Hoya 1.579572 53.705963
BAFL6 Hoya 1.589036 52.935166
BAF6 Hoya 1.589003 48.543984
FEL3 Hoya 1.560125 47.090971
LAF50 Hoya 1.60199 50.21
BAF3 Hoya 1.58267 46.462286
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