F5 by Sumita

Obsolete Very Rare Environmentally Dangerous

F5 by Sumita is an obsolete optical glass with a very rare melt frequency. It transmits from 0.32 to 2.00 µm with an nd of 1.60342 and a Vd of 38.0. It has excellent chemical resistance and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.27–2.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.27–2.0 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–2.000 µm
Optical Properties
Refractive Index (nd) 1.60342
Abbe Number (Vd) 38.0
Dispersion Formula Schott
Wavelength Range 0.27 — 2.0 µm
$$n(\lambda) = \sqrt{2.50698 - 0.00866302\,\lambda^2 + 0.0210533\,\lambda^{-2} + 0.000740932\,\lambda^{-4} - 2.18573 \times 10^{-5}\,\lambda^{-6} + 4.18246 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) 9.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.45
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance —
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
E-F5 Hoya 1.60342 38.01
H-F1 CDGM 1.60342 38.010877
PBM5 Ohara 1.60342 38.012915
F1 CDGM 1.603417 38.01487
F5 Hoya 1.603417 38.014872
S-TIM5 Ohara 1.60342 38.027347
F5 Schott 1.60342 38.03
C04-38 Corning 1.603499 38.110538
F15 Hoya 1.605651 37.899711
F15 Schott 1.605651 37.830856
Similar Glasses (Sumita)
Glass Manufacturer nd Vd Compare
F8 Sumita 1.59551 39.2
F3 Sumita 1.61293 36.9
BASF3 Sumita 1.60717 40.2
F4 Sumita 1.61659 36.6
F9 Sumita 1.62045 38.0
F2 Sumita 1.62004 36.3
BASF1 Sumita 1.62606 39.1
LF2 Sumita 1.58921 41.0
F1 Sumita 1.62588 35.6
LF5 Sumita 1.58144 40.8
Compare Glasses
    Compare Selected