Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK10
Wavelength:
µm
(0.300–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.89571408-0.0120013315λ^{2}-0.000136916169λ^{4}+0.0219522159λ^{-2}+0.000357973143λ^{-4}+8.26304425\text{×}10^{-06}λ^{-6}+2.7388172\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.7668e-06 9.8859e-09 -2.8849e-13 6.0939e-07 6.7233e-10 0.19968
nd: 1.719990
Vd: 50.267183
density: 3.74 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.5e-06 K-1
dPgF: 0.0016
phosphate_resistance: 3.0
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