PBH11W by Ohara

Obsolete Unknown Environmentally Dangerous

PBH11W by Ohara is an obsolete optical glass. It transmits from 0.38 to 0.70 µm with an nd of 1.784718 and a Vd of 25.712726. It has medium thermal expansion (CTE of 7.4×10⁻⁶/K), excellent 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: 0.380–0.700 µm
Optical Properties
Refractive Index (nd) 1.784718
Abbe Number (Vd) 25.712726
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{3.05233 - 0.0106999\,\lambda^2 + 0.0400268\,\lambda^{-2} + 0.00274113\,\lambda^{-4} - 0.000168257\,\lambda^{-6} + 2.45396 \times 10^{-5}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.4
TCE 100/300°C (10-6/K) 8.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.79
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 1
Notes

Improved Transmittance

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
FD110 Hoya 1.78472 25.72
H-ZF13GT CDGM 1.78472 25.720045
H-ZF13 CDGM 1.78472 25.720045
FD11 Hoya 1.784715 25.704276
SF11 Sumita 1.78472 25.7
SF11W Sumita 1.78472 25.7
N-SF11 Schott 1.78472 25.68
ZF13 CDGM 1.784724 25.754051
SF11 Schott 1.78472 25.76
D85-25 Corning 1.784752 25.799504
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
PBH11 Ohara 1.784718 25.712726
S-TIH11 Ohara 1.784723 25.683446
TIH11 Ohara 1.784723 25.677885
PBH23 Ohara 1.784702 26.216753
PBH23W Ohara 1.784702 26.216753
S-TIH23 Ohara 1.784696 26.291221
TIH23 Ohara 1.784696 26.29817
S-NPH7 Ohara 1.7783 23.911598
S-NBH58 Ohara 1.7888 28.42865
PBH6W Ohara 1.805177 25.435012
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