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

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