BAFD1 by Hoya

Obsolete Unknown Environmentally Dangerous

BAFD1 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.626057 and a Vd of 39.085725. 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) 1.626057
Abbe Number (Vd) 39.085725
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.57933 - 0.00825324\,\lambda^2 + 0.0203754\,\lambda^{-2} + 0.00123379\,\lambda^{-4} - 9.78359 \times 10^{-5}\,\lambda^{-6} + 8.33788 \times 10^{-6}\,\lambda^{-8}}$$
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
BASF1 Sumita 1.62606 39.1
H-BAF8 CDGM 1.62604 39.071631
BASF1 Schott 1.626061 38.962861
BAM21 Ohara 1.626059 39.215631
PBM9 Ohara 1.620451 38.119955
F9 Schott 1.620451 38.080601
F9 Sumita 1.62045 38.0
H-BAF7 CDGM 1.61413 39.985319
BAF7 CDGM 1.614131 40.025731
S-NBM52 Ohara 1.622049 41.079324
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
F9 Hoya 1.620446 38.090002
F3 Hoya 1.612929 36.964515
E-F3 Hoya 1.61293 36.96
F4 Hoya 1.616589 36.615561
BAFD3 Hoya 1.607171 40.359687
F2 Hoya 1.62004 36.303385
E-F2 Hoya 1.62004 36.3
ADF355 Hoya 1.6445 40.762285
F15 Hoya 1.605651 37.899711
F11 Hoya 1.620962 35.947308
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