Lost Aspheric Lens Design Equation Found

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    Design Lens Lost
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SUMMARY

The discussion centers on the rediscovery of the aspheric lens design equation, originally referenced in an old forum thread. A user named Redbelly98 provided a link to a Thorlabs page that contained the equation, which has since been preserved on the Internet Archive. The relevant page is titled "Molded Glass Aspheric Lenses: 350 - 700 nm or 400 - 600 nm AR Coating" and can be accessed directly at https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=3810. The thread has been updated with this correct link, and a screencap of the formula has been shared under Fair Use provisions.

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halibut
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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
 
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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
AsphericLensDesignFormula.png