P-PK53 by Schott

Obsolete Unknown Precision Molding Environmentally Friendly

P-PK53 by Schott is an obsolete optical glass. It transmits from 0.32 to 2.50 µm with an nd of 1.5269 and a Vd of 66.22. It has high thermal expansion (CTE of 13.31×10⁻⁶/K), below average chemical resistance, and precision molding compatibility.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.32–2.5 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.32–2.5 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–2.500 µm
Optical Properties
Refractive Index (nd) 1.5269
Abbe Number (Vd) 66.22
Dispersion Formula Sellmeier
Wavelength Range 0.32 — 2.5 µm
$$n(\lambda) = \sqrt{1 + \frac{0.960317\,\lambda^2}{\lambda^2 - 0.00531033} + \frac{0.340437\,\lambda^2}{\lambda^2 - 0.0175073} + \frac{0.777866\,\lambda^2}{\lambda^2 - 106.875}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 13.31
TCE 100/300°C (10-6/K) 15.97
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.65 \times 10^{-5} + 2(-5.14 \times 10^{-10})\,\Delta T + 3(-2.02 \times 10^{-11})\,\Delta T^2 + \frac{4.11 \times 10^{-7} + 2(4.17 \times 10^{-10})\,\Delta T}{\lambda - 0.208}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.827
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 2
Stain Resistance 1
Acid Resistance 51
Alkali Resistance 4
Phosphate Resistance 4
Notes

inquiry glass. suitable for precision molding

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Glass Manufacturer nd Vd Compare
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