Examining the Use of Lenses

Abstract

Lenses are an important topic of light physics. The inverse of the focal distance of any lens is called the convergence of that lens, if the unit of measurement of the focal distance is meters, then the unit of measurement of convergence is diopters. In terms of physics, the lens of the eye can be defined as a convex lens. Eyes that can see far but cannot see near, usually convex lenses are used to correct it. Various images in lenses and their use in optical instruments, including magnifiers, microscopes, binoculars, projectors, are used in a wide range of applications. In this article, such precious and valuable examples have been pointed out in a manner that encourages our mind and senses to continue it.