A concave or diverging lens diverges a straight beam of sunshine from the source, leading to a decreased, upright virtual picture. it's the power to make both real and virtual images. a minimum of one interior surface of concave lenses is curved. Since it's shaped round inwards towards the centre and bulges outwardly through the sides , causing the sunshine to diverge, a concave lens is additionally referred as a diverging lens. They're wont to cure myopia since they create remote objects appear smaller.