Convex+lens
11Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra …
12Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil …
13Convex — A convex set. The word convex means curving out or bulging outward, as opposed to concave. Convex or convexity may refer to: Mathematics: Convex set, a set of points containing all line segments between each pair of its points Convex function, a… …
14lens system — noun a transparent optical device used to converge or diverge transmitted light and to form images • Syn: ↑lens, ↑lense • Hypernyms: ↑optical device • Hyponyms: ↑anastigmat, ↑anastigmatic lens, ↑ …
15lens — lensless, adj. lenslike, adj. /lenz/, n., pl. lenses, v. n. 1. a piece of transparent substance, usually glass, having two opposite surfaces either both curved or one curved and one plane, used in an optical device in changing the convergence of… …
16Lens (geology) — In geology a lens is a body of ore or rock or a deposit that is thick in the middle and thin at the edges, resembling a convex lens in cross section. Adjective: lenticular .A lens can also refer to an irregular shaped formation consisting of a… …
17lens — /lɛnz / (say lenz) noun (plural lenses) 1. a piece of transparent substance, usually glass, having two (or two main) opposite surfaces, either both curved or one curved and one plane, used for changing the convergence of light rays, as in… …
18convex — con|vex [ˌkɔnˈveks, kən , ˈkɔnveks US ˌka:nˈveks, kən , ˈka:nveks] adj [Date: 1500 1600; : Latin; Origin: convexus] curved outwards, like the surface of the eye ≠ ↑concave ▪ a convex lens ▪ a convex mirror >convexly adv >convexity… …
19convex — adjective curved outwards like the surface of the eye: a convex lens | a convex mirror convexly adverb convexity noun (C, U) opposite concave …
20lens — (n.) 1690s, glass to regulate light rays, from L. lens (gen. lentis) lentil, on analogy of the double convex shape. See LENTIL (Cf. lentil). Of the eye from 1719. In the vernacular of the photographer, anyone crowding to the front of a group,… …
