Optical aberration

Have you ever seen a picture that looks a little bit blurry or distorted? That's kind of like what optical aberration is.

When light passes through a lens, it's supposed to come out the other side being focused perfectly. But sometimes, the lens doesn't work perfectly and the light gets bent in the wrong way. This can make things look a little bit strange when we look through the lens.

There are a few different types of optical aberration. Chromatic aberration is when different colors of light get bent differently, so the image ends up looking like it has colored fringes around the edges. Spherical aberration happens when light rays don't all meet at the same point, so the image looks a bit blurry or fuzzy.

To fix optical aberration, scientists and engineers can try to design better lenses that don't bend the light in the wrong way. They might use special materials or shapes to get the light to behave the way it's supposed to. But sometimes, a little bit of aberration is just part of the trade-off of using lenses to see things that are far away or small.