TAFD17 by Hoya

Obsolete Unknown Environmentally Dangerous

TAFD17 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.877999 and a Vd of 38.197051. 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) 1.877999
Abbe Number (Vd) 38.197051
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{3.42254 - 0.0169405\,\lambda^2 + 0.0328681\,\lambda^{-2} + 0.00210921\,\lambda^{-4} - 0.000143158\,\lambda^{-6} + 1.08152 \times 10^{-5}\,\lambda^{-8}}$$
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
LASFN15 Schott 1.878001 38.072485
E78-38 Corning 1.878005 38.494794
D-ZLAF67-25 CDGM 1.88259 37.185491
H-ZLAF68N CDGM 1.883 39.2182
H-ZLAF68NB CDGM 1.883 39.235474
D-ZLAF67 CDGM 1.88385 37.198899
H-ZLAF73 CDGM 1.881 40.161331
S-LAH92 Ohara 1.891899 37.134024
L-LAH94 Ohara 1.860999 37.097767
E65-40 Corning 1.865 40.112393
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
MC-TAFD317 Hoya 1.8812 37.17
M-TAFD307 Hoya 1.88202 37.22
MP-TAFD307 Hoya 1.88202 37.22
MC-TAFD307 Hoya 1.88202 37.22
TAFD33 Hoya 1.881 40.14
TAFD30 Hoya 1.883 40.81
TAFD32 Hoya 1.8707 40.73
TAFD37A Hoya 1.90043 37.37
TAFD37 Hoya 1.90043 37.37
TAFD13 Hoya 1.855396 36.557002
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