RefractiveIndex.INFO Refractive index database

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Optical constants of HOYA - FEL (Extra light flint)
E-FEL1

Wavelength: µm
 (0.34 – 1.55)  
 

Other optical constants

logX   logY   eV

Dispersion formula

$$n^2=2.3534484-1.0330438\text{×}10^{-2}λ^{2}+1.4097325\text{×}10^{-2}λ^{-2}+8.7167875\text{×}10^{-4}λ^{-4}-6.9981970\text{×}10^{-5}λ^{-6}+5.7867359\text{×}10^{-6}λ^{-8}$$

Comments

Refractive index is relative to air at standard conditions; Wavelength in dispersion formula is as measured in air and expressed in micrometers

Data

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

References

HOYA Optical Glass Master Datasheet

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