Image formation by Concave Lens

Rays of light entering a diverging lens parallel to its axis are spread out (diverged), and all appear to originate from the focal point. The dashed lines indicate paths from which the rays seem to originate. Unlike converging lenses, the focal length of a diverging lens is negative. A ray that passes through the center of a diverging lens continues in the same direction without changing course. Another important ray is the one that enters the lens as if heading toward the focal point on the opposite side but exits the lens parallel to the axis. The model demonstrates that the image is always located on the same side of the lens as the object. This image is virtual, upright, and smaller than the object. Regardless of the object's position relative to the lens, diverging lenses consistently produce images with these same characteristics. The location of the object does not change these fundamental properties of the image formed by a diverging lens.