Optical constants of HIKARI - BaK (Barium crown)
E-BAK4
Wavelength:
µm
(0.320–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.4220474-0.00935286439λ^{2}+0.0138282404λ^{-2}+0.000292097262λ^{-4}-5.77819731\text{×}10^{-06}λ^{-6}+7.05644888\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
nd: 1.568832
Vd: 56.338294
glass_code: 569563
glass_status: preferred
density: 3.07 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.3e-06 K-1
dPgF: -0.001
References
NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets
Data
INFO
Hikari Glass Co., Ltd.
Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.External links
- Hikari Glass Co., Ltd. (in Japanese)
- Nikon