H-ZPK3 by CDGM

Standard Medium Environmentally Friendly

H-ZPK3 by CDGM is a standard optical glass with a medium melt frequency. It transmits from 0.31 to 2.40 µm with an nd of 1.59349 and a Vd of 67.285372. It has medium thermal expansion (CTE of 9.6×10⁻⁶/K), average chemical resistance, and high relative cost.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.302–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.302–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.310–2.400 µm
Optical Properties
Refractive Index (nd) 1.59349
Abbe Number (Vd) 67.285372
Dispersion Formula Sellmeier
Wavelength Range 0.302 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{0.814545\,\lambda^2}{\lambda^2 - 0.00353645} + \frac{1.10559\,\lambda^2}{\lambda^2 - 111.251} + \frac{0.690102\,\lambda^2}{\lambda^2 - 0.0141865}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.6
TCE 100/300°C (10-6/K) 11.5
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-8.45 \times 10^{-6} + 2(1 \times 10^{-8})\,\Delta T + 3(-1.93 \times 10^{-11})\,\Delta T^2 + \frac{3.72 \times 10^{-7} + 2(2.45 \times 10^{-10})\,\Delta T}{\lambda - 0.181}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.36
Relative Cost 13.8
Mechanical Properties
Young's Modulus (GPa) 81.28
Poisson's Ratio 0.271
Knoop Hardness (kgf/mm²) 446.0
Chemical Resistance
Climatic Resistance 3
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
PCD51 Hoya 1.59349 67.0
MC-PCD51-70 Hoya 1.59271 66.97
MP-PCD51-70 Hoya 1.59271 66.97
M-PCD51 Hoya 1.59201 67.02
B96-67 Corning 1.596306 67.398269
K-PSK400(M) Sumita 1.59179 67.7
S-FPM2 Ohara 1.59522 67.735723
K-PSK400 Sumita 1.595 67.8
GFK68 Sumita 1.5924 68.3
K-GFK68 Sumita 1.5924 68.3
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
D-ZPK3-25 CDGM 1.59327 67.22642
D-ZPK3 CDGM 1.59419 67.295385
D-ZPK5-25 CDGM 1.59216 68.281511
D-ZPK5 CDGM 1.5928 68.342024
H-ZPK5 CDGM 1.5928 68.342024
H-ZPK2A CDGM 1.603001 65.45962
D-ZPK1A-25 CDGM 1.61999 63.763831
D-ZPK1A CDGM 1.62087 63.828532
H-ZPK1A CDGM 1.618 63.392702
D-ZPK7-25 CDGM 1.56854 71.235367
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