RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of HIKARI - LaK (Lanthanum crown)
Q-LAK53S

Wavelength: µm
 (0.280 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.81181751-0.0118938304λ^{2}-0.000165919133λ^{4}+0.0199255052λ^{-2}+0.000237580562λ^{-4}+1.29438052\text{×}10^{-05}λ^{-6}-1.59492635\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: 2.78365e-06 1.10836e-08 1.54696e-12 5.96778e-07 5.26064e-10 0.184087
n_d: 1.693430
V_d: 53.300774
density: 3.66 g/cm3
coefficient_of_thermal_expansion_1: 6.7e-06 K-1
ΔP_gF: -0.0074
phosphate_resistance: 3.0

Comments

For mold lens

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

External links


Glass

External links