The light rays that pass through a convex lens converge or are brought closer together. It is thicker at the center as compared to its edges. It produces the real and inverted image of the object. A convex lens which is also called as a converging lens or positive lens is thicker in the middle. A convex lens is supposed to be made up of number of prisms with the base of each prism towards the centre of the lens. But, a convex lens is used in lasers, flashlights of vehicles as well as peepholes of doors. Concave lenses always produce virtual, diminished and upright images no matter where the object is kept. Convex lens is used for various purposes like in a magnifying glass, camera, microscope, correction of Hypermetropia, etc. A lens is a piece of transparent material bound by two surfaces of which at least one is curved. It magnifies the object and makes a closer and larger image of it. Image Courtesy “A negative lens” by DrBob at English Wikipedia (Transferred from en.wikipedia to … The distance from the principle focus to the centre of the lens is known as focal length. The convex lens are the converging lens. The periphery of the convex lens is thinner & the center part is thicker. Concave and Convex Lens. So, it is used to cope with long sightedness. Image Formation. Convex lenses hold magnifying abilities thus are generally used in the lens of microscope and telescope, also, the human eye lens is concave in nature. Convex lenses and the lens equation; Examples using lens equation; Concave lenses ; Feedback. A lens bound by two spherical surfaces bulging outwards is called a bi-convex lens or simply a convex lens.A single piece of glass that curves outward and converges the light incident on it is also called a convex lens. When rays parallel to the principal axis pass through a convex lens, they are bent inwards. There are various uses of a convex lens like in a microscope, magnifying glasses, camera, correction of hypermetropia, etc. We can use the lens equation that we have previously seen to find the principal focal point. The point at which they converge is known as principle focus. Convex lenses and the lens equation. A convex lens has a positive focal length because the focal point is present in front of the convex lens. The nature of the image formed by convex lenses depends on where the object is placed. Convex lens converges the parallel rays of light passing through them. In an exam, the lens equation may be used in a whole host of questions. Last updated at April 26, 2020 by Teachoo.