H-ZK10 by CDGM

Preferred Rare Environmentally Friendly

H-ZK10 by CDGM is a preferred optical glass with a rare melt frequency. It transmits from 0.32 to 2.40 µm with an nd of 1.6221 and a Vd of 56.709831. It has low thermal expansion (CTE of 6.5×10⁻⁶/K), excellent chemical resistance, and low relative cost.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.313–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.313–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–2.400 µm
Optical Properties
Refractive Index (nd) 1.6221
Abbe Number (Vd) 56.709831
Dispersion Formula Sellmeier
Wavelength Range 0.313 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.48008\,\lambda^2}{\lambda^2 - 0.00852142} + \frac{0.87419\,\lambda^2}{\lambda^2 - 93.1901} + \frac{0.10584\,\lambda^2}{\lambda^2 - 0.0327273}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.5
TCE 100/300°C (10-6/K) 7.5
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-3.18 \times 10^{-9} + 2(2.08 \times 10^{-8})\,\Delta T + 3(-7.24 \times 10^{-11})\,\Delta T^2 + \frac{5 \times 10^{-7} + 2(-1.17 \times 10^{-10})\,\Delta T}{\lambda - 0.212}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.63
Relative Cost 2.0
Mechanical Properties
Young's Modulus (GPa) 82.51
Poisson's Ratio 0.27
Knoop Hardness (kgf/mm²) 598.0
Chemical Resistance
Climatic Resistance 1
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
SK10 Sumita 1.6228 56.9
SK10 Schott 1.622801 56.903777
BACD10 Hoya 1.622799 56.906336
E-BACD10 Hoya 1.6228 56.91
C23-57 Corning 1.622801 56.922436
N-SK10 Schott 1.62278 56.98
S-BSM10 Ohara 1.622799 57.052723
BSM10 Ohara 1.622799 57.063643
SK6 Schott 1.61375 56.397311
BACD6 Hoya 1.613753 56.377856
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
H-ZK10L CDGM 1.6228 56.913492
H-ZK21 CDGM 1.62299 58.120667
D-ZK21-25 CDGM 1.62346 58.115078
D-ZK21 CDGM 1.62446 58.207924
H-ZK5 CDGM 1.61117 55.772437
H-ZK8 CDGM 1.61405 55.116283
H-ZK50 CDGM 1.60738 56.654511
H-ZK50GT CDGM 1.60738 56.654511
D-ZK79 CDGM 1.60886 57.895896
D-ZK79-25 CDGM 1.60809 57.820851
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