S-TIM6 by Ohara

Obsolete Unknown Environmentally Friendly

S-TIM6 by Ohara is an obsolete optical glass. It transmits from 0.37 to 1.00 µm with an nd of 1.636358 and a Vd of 35.391923. It has medium thermal expansion (CTE of 8.3×10⁻⁶/K) and excellent chemical resistance.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.3–2.4 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.3–2.4 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.370–1.000 µm
Optical Properties
Refractive Index (nd) 1.636358
Abbe Number (Vd) 35.391923
Dispersion Formula Sellmeier
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{1 + \frac{1.41315\,\lambda^2}{\lambda^2 - 0.00995173} + \frac{0.191465\,\lambda^2}{\lambda^2 - 0.0527933} + \frac{1.68833\,\lambda^2}{\lambda^2 - 168.805}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.3
TCE 100/300°C (10-6/K) 10.2
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) 2.79
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance 1
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
F7 CDGM 1.636365 35.386204
F6 Sumita 1.63636 35.4
F6 Schott 1.636359 35.341176
F6 Hoya 1.636356 35.340304
C37-35 Corning 1.636493 35.322642
SF7 Sumita 1.6398 34.6
E-FD7 Hoya 1.6398 34.57
FD7 Hoya 1.639803 34.568909
H-F51 CDGM 1.6398 34.46457
C26-36 Corning 1.625903 35.60701
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
PBM6 Ohara 1.636358 35.376536
PBM27 Ohara 1.639799 34.477127
S-TIM27 Ohara 1.639799 34.466422
S-TIM1 Ohara 1.625882 35.699614
PBM1 Ohara 1.625882 35.700668
TIM11 Ohara 1.620955 35.880852
PBM11 Ohara 1.620955 35.880852
PBM22 Ohara 1.647689 33.802937
S-TIM22 Ohara 1.647689 33.792803
PBM2 Ohara 1.620041 36.256658
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