FPL53 by Ohara

Obsolete Unknown Environmentally Dangerous

FPL53 by Ohara is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.43875 and a Vd of 94.960437. 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) 1.43875
Abbe Number (Vd) 94.960437
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.05313 - 0.00431901\,\lambda^2 + 0.00627524\,\lambda^{-2} - 9.8513 \times 10^{-6}\,\lambda^{-4} + 1.36497 \times 10^{-5}\,\lambda^{-6} - 8.90379 \times 10^{-7}\,\lambda^{-8}}$$
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
FCD100 Hoya 1.437 95.1
D-FK95 CDGM 1.4378 94.523389
H-FK95N CDGM 1.4378 94.523389
D-FK95-25 CDGM 1.43744 94.438841
N-FK56 Schott 1.43425 94.953489
K-CaFK95 Sumita 1.43425 95.0
CAFK95 Sumita 1.43425 95.0
CAF2 Generic IR 1.433849 94.995854
LITHOTEC-CAF2 Schott 1.43385 95.23
K-CaFK95(M) Sumita 1.43312 95.0
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
S-FPL53 Ohara 1.43875 94.946025
S-FPL55 Ohara 1.43875 94.661059
FPL52 Ohara 1.455999 90.31888
S-FPL52 Ohara 1.455999 90.288026
FPL51 Ohara 1.496999 81.61466
S-FPL51 Ohara 1.496999 81.545888
S-FPL51Y Ohara 1.497003 81.138165
S-FPM4 Ohara 1.52841 76.452824
S-FPM3 Ohara 1.53775 74.703119
S-FSL5Y Ohara 1.48749 70.354425
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