Optical constants of HIKARI - BaK (Barium crown)
J-BAK2
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.3361606-0.00818245071λ^{2}-9.82753897\text{×}10^{-05}λ^{4}+0.0127499096λ^{-2}+0.000122269251λ^{-4}+8.48994057\text{×}10^{-06}λ^{-6}-1.59525058\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -7.17e-07 1.3367e-08 -3.1142e-12 5.3353e-07 5.8825e-10 0.17288
nd: 1.539960
Vd: 59.523574
density: 2.84 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.6e-06 K-1
dPgF: -0.0008
phosphate_resistance: 2.0
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