Geometrical optics

[Maurice]

Hello,

Can you help me?

Consider your eye as a thin convex lens of 5.1 mm and with focal length of 13 mm.

How far must be a object from your cornea to create a image on your retina?

I found 41.62 mm by using equation of thin lens 1/s0 + 1/si= 1/f, is it good?

 

[studiot]

What is the 5.1mm measurement?

[Maurice]

Sorry it is a mistake the thin convex lens of the eye is a distance of 5.1 mm from the cornea and the distance from the lens cornea is 18 mm.

I use the lens equation for thin lens, it don't seems good...Maybe is it better to use the Jones vectors?

Thanks and sorry for my English.