eclairagisme.py

Created on June 11, 2024

405 Bytes

# Type your text hereFlux lumineux Phi (lm)= I(cd)*w(sr)

Intensité lumineuse I(cd)=Phi(lm)/w(sr)
Eclairement 
E(lumen/m2 ou lux) = Phi recu/ S
E= I*cos (Ang)/d2
Eh = Icos3/h2
Ev=I/d2 * sin (Ang)
D=h/cos(Ang)

Eh=I*cos(ang)3/h2
Ehp=I*cos(ang)3/h2
Ev=Ehp*tan ang


Luminance L(cd/m2) = I/Sa = E*Pho/pi
Contraste: C = Ldétail – Lfond /Lfond

Eha=(Il1*cos(ang)3)/h2 +(Il2*cos(ang)3)/h2

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