H-ZK14 by CDGM

Preferred Very Common Environmentally Friendly

H-ZK14 by CDGM is a preferred optical glass with a very common melt frequency. It transmits from 0.29 to 2.40 µm with an nd of 1.60311 and a Vd of 60.603787. It has low thermal expansion (CTE of 6.1×10⁻⁶/K) and low 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: 0.290–2.400 µm
Optical Properties
Refractive Index (nd) 1.60311
Abbe Number (Vd) 60.603787
Dispersion Formula Sellmeier
Wavelength Range 0.302 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{0.821911\,\lambda^2}{\lambda^2 - 0.0036966} + \frac{0.995367\,\lambda^2}{\lambda^2 - 97.9765} + \frac{0.708381\,\lambda^2}{\lambda^2 - 0.015941}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.1
TCE 100/300°C (10-6/K) 7.5
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.66 \times 10^{-7} + 2(1.7 \times 10^{-8})\,\Delta T + 3(-3.14 \times 10^{-11})\,\Delta T^2 + \frac{3.59 \times 10^{-7} + 2(3.53 \times 10^{-10})\,\Delta T}{\lambda - 0.219}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.44
Relative Cost 1.8
Mechanical Properties
Young's Modulus (GPa) 84.6
Poisson's Ratio 0.257
Knoop Hardness (kgf/mm²) 581.0
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
N-SK14 Schott 1.60311 60.6
SK14 Schott 1.60311 60.596819
S-BSM14 Ohara 1.603112 60.64108
BSM51Y Ohara 1.603109 60.651225
SK14 Sumita 1.60311 60.7
BACD14 Hoya 1.60311 60.7
K-SK14 Sumita 1.60311 60.7
BSM14 Ohara 1.603112 60.704896
FCD600 Hoya 1.5941 60.47
K-SK7 Sumita 1.60729 59.5
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
H-ZK7 CDGM 1.613095 60.614383
H-ZK7A CDGM 1.61309 60.355862
D-ZK3L CDGM 1.5917 60.701147
D-ZK3L-25 CDGM 1.5909 60.618517
H-ZK4 CDGM 1.60881 58.855991
D-ZK3A CDGM 1.58913 61.101573
D-ZK3 CDGM 1.58913 61.152901
H-ZK3A CDGM 1.58913 61.2531
H-ZK3 CDGM 1.58913 61.253571
D-ZK3A-25 CDGM 1.58828 61.012484
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