ciespecagecorr

The ciespecagecorr function returns the age dependent ocular spectral transmission correction factors according to CIE S026:2018. Any errors in the data set or in results generated with the Lighting Toolbox are not in the liability of the CIE nor me, see licence.

Usage:

[T,lam] = ciespecagecorr(age,lam)

Where:

Parameter	Description
T	Returns the age dependent ocular transmission factors, vector or matrix.
lam (optional)	Specifies the corresponding wavelengths, vector. Default: 300:5:700.
age	Specifies the age, scalar or vector.

Examples

Plot the spectral ocular transmission correction factors for a 50-year-old observer:

lam = 380:780;
c50 = ciespecagecorr(50,lam);

plot(lam,c50)
grid on
xlim([380 780])
xlabel('\lambda in nm')
ylabel('relative spectral transmission correction')
title('spectral ocular transmission correction - 50 y')

Result:

Plot the spectral ocular transmission correction factors for observers aged 10 to 100 in 10 years steps:

age = 10:10:100;
lam = 380:780;
t = ciespecagecorr(age,lam);

c = colors(length(age));
plotorder(lam,t,c);
grid on
xlim([380 780])
xlabel('\lambda in nm')
ylabel('relative spectral transmission correction')
title('spectral ocular transmission correction')
legend('10 y','20 y','30 y','40 y','50 y','60 y','70 y','80 y','90 y','100 y')
specbar(380:50:780)

See also: colours, specbar

Result:

References:
CIE S 026/E:2018: CIE System for Metrology of Optical Radiation for ipRGC-Influenced Responses to Light. Commission Internationale de l’Eclairage, Vienna Austria, 2018, (DOI: 10.25039/S026.2018). URL: https://cie.co.at/publications/cie-system-metrology-optical-radiation-iprgc-influenced-responses-light-0

CIE 203:2012 (incl. Erratum), A COMPUTERIZED APPROACH TO TRANSMISSION AND ABSORPTION CHARACTERISTICS OF THE HUMAN EYE, Commission Internationale de l’Eclairage (CIE), Vienna Austria, ISBN: 978-3-902842-43-5. URL: https://cie.co.at/publications/computerized-approach-transmission-and-absorption-characteristics-human-eye

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