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The picture in the tweet only shows rays originating from an object that is close to the center of the field of view. The article mentioned in another comment h
by fsh 5y ago
The picture in the tweet only shows rays originating from an object that is close to the center of the field of view. The article mentioned in another comment has better schematics: https://www.pencilofrays.com/lens-design-forms/#mobile https://www.pencilofrays.com/lens-design-forms/#mobile
Smartphone cameras usually have a pretty wide field of view. The complex shapes are required in order to compensate for the aberrations caused by the large angles between the optical rays and the lens surfaces.
- Noumenon72 5y agoSo the lenses take in incoming white light and split it by color? And there's one sensor for each color or something?
- fsh 5y agoNo, the colors in that schematic are only a visual aid for distinguishing the rays. Each set of colored ray bundles comes from a single object point. The task of the lens is to map them into a single point in the image plane. At the same time, the lens is designed not to split the light by colors, since this would cause chromatic aberrations. This is not shown in this particular schematic.