RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of HIKARI - BaLF (Barium light flint)
J-BALF4

Wavelength: µm
 (0.320 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.45156936-0.00835914203λ^{2}-8.88499407\text{×}10^{-05}λ^{4}+0.0153016408λ^{-2}+0.00022451288λ^{-4}+5.89498036\text{×}10^{-06}λ^{-6}+2.59209632\text{×}10^{-07}λ^{-8}$$

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.579570
V_d: 53.742830
density: 3.13 g/cm3
coefficient_of_thermal_expansion_1: 8e-06 K-1
ΔP_gF: -0.0023
phosphate_resistance: 3.0

References

1) HIKARI optical glass catalog 2015-04-01
2) HIKARI Zemax catalog

More info - wiki

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

External links

Latest optical glass catalog