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Optical constants of HOYA - FDS (Special dense flint)
E-FDS1

Wavelength: µm
 (0.36501 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.5044639-0.020333833λ^{2}+0.0538027λ^{-2}+0.0062874192λ^{-4}-0.00056922176λ^{-6}+7.3559387\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.37e-06 1.1e-08 -2.29e-11 1.06e-06 1.516e-09 0.311
n_d: 1.92286
V_d: 20.88
glass_code: 923209
density: 3.94 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.5e-06 K-1
ΔP_gF: 0.0282
climatic_resistance: 1.0
stain_resistance: 2.0
acid_resistance: 1.0

Comments

General glass Type

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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