Lost Aspheric Lens Design Equation Found

[halibut]

Hi all,

I was interested in ideal shapes for lenses and Google popped up this very old thread:
"Mathematical shape for a lens with no spherical aberration"


A member named Redbelly98 replied (<link>) with a now-broken link to a Thorlabs page that gave an aspheric lens equation.

Took a minute, but I think this is the page with that equation (on the page's "Lens Equation" tab) safely preserved on Internet Archive:
"Molded Glass Aspheric Lenses: 350 - 700 nm or 400 - 600 nm AR Coating" - Thorlabs

 

[Doc Al]

Thanks for re-discovering that link. It can be accessed directly here: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=3810

The old thread has been updated with the correct link. 👍

 

[cormsby]

I edited a screencap of the formula (for compactness)
from the ThorLabs web-page, by virtue of Fair Use
bcoz U.S.Code Title 17, Section 107, blah blah blah