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Optical constants of HOYA - LaC (Lanthanum crown)
LAC13

Wavelength: µm
 (0.300 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.8125316-0.012915271λ^{2}+0.019960339λ^{-2}+0.00019877888λ^{-4}+1.7647061\text{×}10^{-05}λ^{-6}-4.4767632\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 7.22553e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.69350
V_d: 53.34
glass_code: 694533
glass_status: special
density: 3.56 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 6.8e-06 K-1
ΔP_gF: -0.0066
climatic_resistance: 1.0
stain_resistance: 4.0
acid_resistance: 4.0

Comments

Not in a position to accept new order because of discontinuation.

References

HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)

Data

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

INFO

HOYA Corporation

Hoya Corporation is a Japanese company manufacturing optical products.

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