ELI5: Explain Like I'm 5

Pseudo-Zernike polynomials

Okay kiddo, have you ever seen a kaleidoscope toy with lots of colors and shapes in it? Pseudo-zernike polynomials are like that toy, but they help us understand how light waves bend and twist as they pass through lenses in cameras, telescopes, and microscopes.

Now imagine you have a big circle and you want to see how well you can see things near the edge of the circle. Pseudo-zernike polynomials help us measure this by looking at how the waves of light change as they travel through the edges.

The polynomials are made up of different shapes, like circles and triangles, that help us describe the different ways the light waves can bend and twist. This information is important for people who design lenses because they want to make sure you can see things clearly no matter where they are in the field of view.

So, just like how the kaleidoscope toy shows us lots of pretty shapes and colors, pseudo-zernike polynomials help us see how light waves bend and twist to give us better vision and clearer pictures.