No, 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 o

No, 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.