What is another word for spherical lens?
Pronunciation: [sfˈɛɹɪkə͡l lˈɛnz] (IPA) 
A spherical lens is a type of lens that has a spherical curvature on its surface. Some synonyms for spherical lens include: convex lens, concave-convex lens, ball lens, round lens, circle lens, and domed lens. Convex lenses are used in magnifying glasses, telescopes, and camera lenses. Concave-convex lenses are used in eyeglasses to correct vision problems. Ball lenses are used in fiber optics and laser applications. Round lenses can also refer to contact lenses or eyeglass lenses. Circle lenses are decorative contact lenses that make the iris appear larger. Domed lenses are used in surveillance cameras and provide a wide field of view.
