ZF11 by CDGM

Obsolete Rare Environmentally Dangerous

ZF11 by CDGM is an obsolete optical glass with a rare melt frequency. It transmits from 0.37 to 2.40 µm with an nd of 1.698949 and a Vd of 30.065686. It has medium thermal expansion (CTE of 7.3×10⁻⁶/K), moderate relative cost, and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365–0.7065 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365–0.7065 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.370–2.400 µm
Optical Properties
Refractive Index (nd) 1.698949
Abbe Number (Vd) 30.065686
Dispersion Formula Schott
Wavelength Range 0.365 — 0.7065 µm
$$n(\lambda) = \sqrt{2.79067 - 0.010645\,\lambda^2 + 0.0290719\,\lambda^{-2} + 0.00212866\,\lambda^{-4} - 0.000158156\,\lambda^{-6} + 1.71452 \times 10^{-5}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.3
TCE 100/300°C (10-6/K) 8.8
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.06
Relative Cost 4.5
Mechanical Properties
Young's Modulus (GPa) 60.79
Poisson's Ratio 0.232
Knoop Hardness (kgf/mm²) 405.0
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
SF15 Schott 1.69895 30.07
FD15 Hoya 1.698945 30.050548
E-FD15 Hoya 1.69895 30.05
E-FD15L Hoya 1.69895 30.05
C99-30 Corning 1.699002 30.107427
PBM35 Ohara 1.698947 30.121211
S-TIM35 Ohara 1.698947 30.127865
SF15 Sumita 1.69895 30.0
N-SF15 Schott 1.69892 30.2
L-TIM28P Ohara 1.694529 30.655992
Similar Glasses (CDGM)
Glass Manufacturer nd Vd Compare
H-ZF11 CDGM 1.69894 30.05045
D-ZF10 CDGM 1.68893 31.077677
H-ZF10 CDGM 1.68893 31.16057
ZF10 CDGM 1.688934 31.184753
D-ZF10-25 CDGM 1.68731 31.183804
ZF3 CDGM 1.717365 29.510385
H-ZF3 CDGM 1.71736 29.49911
H-ZF2 CDGM 1.6727 32.171186
ZF2 CDGM 1.672707 32.180986
ZF4 CDGM 1.728251 28.3239
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