BEO by Generic Birefringent

Standard Unknown Environmentally Friendly

BEO by Generic Birefringent 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 IR 1.718619 93.251706
SAPPHIRE Generic IR 1.768234 72.237215
SPINEL Generic IR 1.716226 60.607355
K-LaFK58 Sumita 1.6956 59.0
K-LaFK58(M) Sumita 1.69097 58.4
LAK23 Schott 1.668816 57.38444
S-LAL52 Ohara 1.669999 57.327972
LAL52 Ohara 1.669999 57.327972
LACL7 Hoya 1.669996 57.308358
K-LaKn4 Sumita 1.671 57.2
Similar Glasses (Generic Birefringent)
Glass Manufacturer nd Vd Compare
BEO-E Generic Birefringent 1.734106 79.335058
LAF3 Generic Birefringent 1.604046 80.83154
LAF3-E Generic Birefringent 1.596715 81.256833
AL2O3-E Generic Birefringent 1.760096 72.988091
AL2O3 Generic Birefringent 1.768172 72.308589
QUARTZ Generic Birefringent 1.544296 70.132045
LIYF4-E Generic Birefringent 1.476472 88.935059
QUARTZ-E Generic Birefringent 1.553398 68.797763
CALCITE-E Generic Birefringent 1.486494 79.064587
LIYF4 Generic Birefringent 1.453776 93.549426
Compare Glasses
    Compare Selected