Synonyms for lens

noun a transparent optical device used to converge or diverge transmitted light and to form images

noun genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils

noun biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focus light on the retina

noun electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons