Image formation by Concave Lens

Rays of light entering a diverging lens parallel to its axis are diverged, and all appear to originate at its focal point. The dashed lines just indicate the directions from which the rays appear to come. The focal length of a diverging lens is negative. A ray passing through the center of a diverging lens does not change direction. A ray that enters a diverging lens by heading toward the focal point on the opposite side exits parallel to the axis. The model shows that in each case, the image is located on the objects' side of the lens. It is a virtual and upright image which is reduced in size. Diverging lenses always produce images that share these characteristics. The location of the object does not affect the characteristics of the image.