Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF2
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.96796358-0.0119454184λ^{2}-0.000121022641λ^{4}+0.0250950364λ^{-2}+0.00059199783λ^{-4}-3.88364981\text{×}10^{-06}λ^{-6}+2.08885425\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.5108e-06 1.43e-08 -2.2272e-12 7.8499e-07 8.1123e-10 0.19366
nd: 1.744000
Vd: 44.804167
density: 4.16 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.8e-06 K-1
dPgF: -0.0056
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