Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK04
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.67775568-0.0109363526λ^{2}-0.000112368235λ^{4}+0.0171233781λ^{-2}+0.000257310134λ^{-4}+2.54752519\text{×}10^{-06}λ^{-6}+1.89782794\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.2612e-06 1.0752e-08 5.8447e-14 5.5752e-07 6.8011e-10 0.17205
nd: 1.651000
Vd: 56.237891
glass_status: preferred
density: 3.27 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.6e-06 K-1
dPgF: -0.0047
phosphate_resistance: 4.0
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