BEO by Generic IR

Standard Unknown Environmentally Friendly

BEO by Generic IR is a standard optical glass. It transmits from 0.44 to 7.00 µm with an nd of 1.718619 and a Vd of 93.251706.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.44–7.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.44–7.0 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.440–7.000 µm
Optical Properties
Refractive Index (nd) 1.718619
Abbe Number (Vd) 93.251706
Dispersion Formula Sellmeier
Wavelength Range 0.44 — 7.0 µm
$$n(\lambda) = \sqrt{1 + \frac{1.92274\,\lambda^2}{\lambda^2 - 0.00625365} + \frac{1.24209\,\lambda^2}{\lambda^2 - 94.3443} + \frac{0\,\lambda^2}{\lambda^2 - 0}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
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 —
Notes

source: Handbook of Optics Vol. II

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
BEO Generic Birefringent 1.718619 93.251706
BEO-E Generic Birefringent 1.734106 79.335058
AL2O3-E Generic Birefringent 1.760096 72.988091
AL2O3 Generic Birefringent 1.768172 72.308589
K-LaFK58 Sumita 1.6956 59.0
K-LaFK58(M) Sumita 1.69097 58.4
LAK23 Schott 1.668816 57.38444
LAL52 Ohara 1.669999 57.327972
S-LAL52 Ohara 1.669999 57.327972
LACL7 Hoya 1.669996 57.308358
Similar Glasses (Generic IR)
Glass Manufacturer nd Vd Compare
SAPPHIRE Generic IR 1.768234 72.237215
SPINEL Generic IR 1.716226 60.607355
IRG9 Generic IR 1.486056 81.251965
BAF2 Generic IR 1.474478 81.607872
ALON Generic IR 1.788917 58.204971
SRF2 Generic IR 1.437925 91.593259
CAF2 Generic IR 1.433849 94.995854
MGO Generic IR 1.737505 53.505455
IRGN6 Generic IR 1.589096 56.33564
F_SILICA Generic IR 1.458464 67.821433
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