RefractiveIndex.INFO Refractive index database

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Optical constants of SUMITA - Glasses for precision molding
K-PBK40

Wavelength: µm
 (0.365 – 1.548)  
 

Other optical constants

logX   logY   eV

Dispersion formula

$$n^2=2.2744024-1.070289\text{×}10^{-2}λ^{2}+1.0577306\text{×}10^{-2}λ^{-2}+2.2857431\text{×}10^{-4}λ^{-4}-7.2914225\text{×}10^{-6}λ^{-6}+2.4124054\text{×}10^{-7}λ^{-8}$$

Comments

Glass for Precision Molding. 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

Sumita Optical Glass Data Book

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