Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK7R
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.68281356-0.012462194λ^{2}-0.000136478256λ^{4}+0.0162751692λ^{-2}+0.000253121787λ^{-4}+1.72812439\text{×}10^{-07}λ^{-6}+2.34124836\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.54376e-06 1.24315e-08 2.17432e-12 4.46388e-07 4.86384e-10 0.184172
nd: 1.651600
Vd: 58.618566
density: 3.34 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.1e-06 K-1
dPgF: -0.0051
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