Double convex lens diameter 90mm

What is a double convex lens?
Bi-Convex (Double-Convex) lenses have the same radius of curvature on both sides of the lens and function similarly to plano-convex lenses by focusing parallel rays of light to a single point. … Bi-Convex lenses are the best choice when the object and image are at equal or near equal distance from the lens.

(picture show of our double convex lens)

How double convex lens work?

A double convex lens, or converging lens, focuses the diverging, or blurred, light rays from a distant object by refracting (bending) the rays twice.  This double bending causes the rays to converge at a focal point behind the lens so that a sharper image can be seen or photographed.

● What is the magnification formula for lenses?
Magnification formula for lenses. Let’s explore the magnification formula (M= v/u) for lenses and see how to find the image height and its nature (whether it’s real or virtual). Created by Mahesh Shenoy.

● What is application of double convex lens? 
Double-Convex Lenses are used in image relay applications, or for imaging objects at close conjugates. Double-Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii.