E-FD10L by Hoya

Preferred Very Common Environmentally Friendly

E-FD10L by Hoya is a preferred optical glass with a very common melt frequency. It transmits from 0.37 to 2.50 µm with an nd of 1.72825 and a Vd of 28.32. It has medium thermal expansion (CTE of 8.2×10⁻⁶/K) and excellent chemical resistance.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.36501–1.5296 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.36501–1.5296 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.370–2.500 µm
Optical Properties
Refractive Index (nd) 1.72825
Abbe Number (Vd) 28.32
Dispersion Formula Schott
Wavelength Range 0.36501 — 1.5296 µm
$$n(\lambda) = \sqrt{2.88198 - 0.01336\,\lambda^2 + 0.0310908\,\lambda^{-2} + 0.00282185\,\lambda^{-4} - 0.000254583\,\lambda^{-6} + 2.73742 \times 10^{-5}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.2
TCE 100/300°C (10-6/K) 10.2
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.96 \times 10^{-6} + 2(1.23 \times 10^{-8})\,\Delta T + 3(-5.23 \times 10^{-11})\,\Delta T^2 + \frac{1.02 \times 10^{-6} + 2(1.16 \times 10^{-9})\,\Delta T}{\lambda - 0.267}\right] \Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.01
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance 1
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance —
Notes

Recommended glass Type

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
H-ZF4AGT CDGM 1.72825 28.318797
H-ZF4A CDGM 1.72825 28.318797
ZF4 CDGM 1.728251 28.3239
SF10W Sumita 1.72825 28.3
SF10 Sumita 1.72825 28.3
D28-28 Corning 1.728304 28.397796
SF10 Schott 1.72825 28.41
S-TIH10 Ohara 1.72825 28.460599
PBH10 Ohara 1.728249 28.4623
N-SF10 Schott 1.72828 28.53
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
E-FD10 Hoya 1.72825 28.32
FD10 Hoya 1.728252 28.319563
FDS2 Hoya 1.7283 28.674457
FD18 Hoya 1.721507 29.243436
FD20 Hoya 1.720225 29.300359
FD3 Hoya 1.739999 28.245048
FD13 Hoya 1.740774 27.764991
E-FD13 Hoya 1.74077 27.76
E-FD1 Hoya 1.71736 29.5
E-FD1L Hoya 1.71736 29.5
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