D-ZK3L by CDGM

Standard Rare Precision Molding Environmentally Friendly

D-ZK3L by CDGM is a standard optical glass with a rare melt frequency. It transmits from 0.30 to 2.40 µm with an nd of 1.5917 and a Vd of 60.701147. It has moderate relative cost and precision molding compatibility.

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: 0.300–2.400 µm
Optical Properties
Refractive Index (nd) 1.5917
Abbe Number (Vd) 60.701147
Dispersion Formula Sellmeier
Wavelength Range 0.302 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{0.638506\,\lambda^2}{\lambda^2 - 0.00216674} + \frac{0.857388\,\lambda^2}{\lambda^2 - 0.0144861} + \frac{1.23664\,\lambda^2}{\lambda^2 - 107.881}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) 9.2
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[2.09 \times 10^{-6} + 2(1.33 \times 10^{-8})\,\Delta T + 3(5.99 \times 10^{-11})\,\Delta T^2 + \frac{4.94 \times 10^{-7} + 2(2.85 \times 10^{-10})\,\Delta T}{\lambda - 0.176}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.84
Relative Cost 5.4
Mechanical Properties
Young's Modulus (GPa) 97.45
Poisson's Ratio 0.233
Knoop Hardness (kgf/mm²) 643.0
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

anneal rate:4℃/h

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
K-PSK100 Sumita 1.5917 60.7
P-SK100 Sumita 1.5917 60.7
K-SKLD100 Sumita 1.5911 60.7
L-BAL35P Ohara 1.59208 60.993997
FCD600 Hoya 1.5941 60.47
S-BAL35R Ohara 1.58913 60.960312
K-PSK100(M) Sumita 1.58792 60.6
S-BAL35 Ohara 1.58913 61.135024
P-SK58A Schott 1.58913 61.15
L-BAL35 Ohara 1.58913 61.152601
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
D-ZK3L-25 CDGM 1.5909 60.618517
D-ZK3A CDGM 1.58913 61.101573
D-ZK3A-25 CDGM 1.58828 61.012484
D-ZK3 CDGM 1.58913 61.152901
H-ZK3A CDGM 1.58913 61.2531
H-ZK3 CDGM 1.58913 61.253571
D-ZK3-25 CDGM 1.58833 61.284362
D-ZK2L CDGM 1.587 59.600321
D-ZK2L-25 CDGM 1.58625 59.524868
H-ZK14 CDGM 1.60311 60.603787
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