Optical constants of HIKARI - LaK (Lanthanum crown)
LAK9
Wavelength:
µm
(0.310 – 0.7)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.78212+0.003869888λ^{2}+0.03229938λ^{-2}-0.003179159λ^{-4}+0.0004358368λ^{-6}-2.062241\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
nd: 1.691000
Vd: 54.814152
glass_code: 691548
glass_status: preferred
density: 3.46 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.7e-06 K-1
dPgF: -0.0088
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