C12 by Hoya

Obsolete Unknown Environmentally Dangerous

C12 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.523073 and a Vd of 58.640203. It has dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.523073
Abbe Number (Vd) 58.640203
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.28778 - 0.00931487\,\lambda^2 + 0.0109864\,\lambda^{-2} + 0.000484652\,\lambda^{-4} - 3.39447 \times 10^{-5}\,\lambda^{-6} + 1.69586 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) —
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
H-K51 CDGM 1.52307 58.639792
B270 Schott 1.52308 58.571369
KN1 Sumita 1.524 59.3
S-NSL3 Ohara 1.518229 58.902057
H-K10 CDGM 1.51818 58.949331
NSL3 Ohara 1.518229 58.966406
K3 Schott 1.51823 58.976559
K3 Sumita 1.51823 59.0
B23-59 Corning 1.522996 59.479482
N-K5 Schott 1.52249 59.48
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
C3 Hoya 1.518234 58.96082
E-C3 Hoya 1.51823 58.96
C5 Hoya 1.522488 59.447258
ZNC1 Hoya 1.533149 58.063515
BACL1 Hoya 1.526417 60.113677
C40 Hoya 1.523 60.4016
BACL3 Hoya 1.518351 60.396486
C2 Hoya 1.51602 56.771193
C7 Hoya 1.511122 60.485929
BAC2 Hoya 1.539961 59.721586
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