exo.py

Created on November 20, 2024
732 Bytes
Si : Do = 60           SR’ = 25mm        SH’ = 2mm
1)  Calculer la proximite retinienne : 
HR’ = SR’ – SH’ = 23mm
2)  Position du foyer image de l’oeil
H’F’ = n’/D = 1,336/60 = 22,27 mm 
3)  Refraction axiale principale 
R’ = 1,336/0,023 = 58,09 dioptries
R = R’-D = 58,09 – 60 = -1,91 dioptries
4)  Position du remotum
HR = 1/R + 1/(-1,91) = -523,56mm
5)  Objet droit AB a 40cm de H, calculer la position de A’B’
H’A’ = n’ / n/HA + Do = 1,336 / 1/-1 + 60 = 22,64 mm
A’B’/AB = (n/n’) x (dist image/dist objet)
A’B’ = ((n x H’A’) / (n’ x HA)) x AB
A’B’ = ((1 x 0,022) / (1,336 x 1)) x 1 = 16,95 mm
6) IJ a plus de 5m de H. Donner la position de son image I’J’
H’I’ = n’ /n/HR + Do =  1,336 / 1/(-0,523) + 60 = 23mm