PBH13W by Ohara

Obsolete Unknown Environmentally Dangerous

PBH13W by Ohara is an obsolete optical glass. It transmits from 0.37 to 0.90 µm with an nd of 1.740769 and a Vd of 27.793228. It has medium thermal expansion (CTE of 7.3×10⁻⁶/K), good chemical resistance, and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.3–2.4 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.3–2.4 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.370–0.900 µm
Optical Properties
Refractive Index (nd) 1.740769
Abbe Number (Vd) 27.793228
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.91614 - 0.0101477\,\lambda^2 + 0.0350777\,\lambda^{-2} + 0.002087\,\lambda^{-4} - 0.000110777\,\lambda^{-6} + 1.72365 \times 10^{-5}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.3
TCE 100/300°C (10-6/K) 8.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.094 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.44
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance 2
Notes

Improved Transmittance

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
ZF50 CDGM 1.74077 27.76788
FD13 Hoya 1.740774 27.764991
H-ZF50 CDGM 1.74077 27.760063
E-FD13 Hoya 1.74077 27.76
SF13 Sumita 1.74077 27.7
SF13 Schott 1.740771 27.59998
SF54 Schott 1.7408 28.090813
D40-28 Corning 1.740001 28.102623
SF3 Sumita 1.74 28.2
SF3 Schott 1.74 28.2
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
PBH13 Ohara 1.740769 27.793228
S-TIH13 Ohara 1.740769 27.789359
PBH3 Ohara 1.739998 28.283809
PBH3W Ohara 1.739998 28.287409
S-TIH3 Ohara 1.739998 28.296005
S-TIH10 Ohara 1.72825 28.460599
PBH10 Ohara 1.728249 28.4623
PBH4 Ohara 1.755199 27.512146
PBH4W Ohara 1.755199 27.512146
S-TIH4 Ohara 1.755199 27.512089
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