meniscus lens converging

meniscus lens converging
concavoconvex l.

Medical dictionary. 2011.

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  • Lens (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 …   Wikipedia

  • Meniscus — The word meniscus comes from the Greek and refers to a crescent shaped structure. Today a meniscus is something that is shaped like a crescent moon or a croissant pastry. A meniscus can be an anatomic feature. For example, the medial meniscus of… …   Medical dictionary

  • lens 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, ↑ …   Useful english dictionary

  • converging meniscus — noun : a meniscus lens of true crescent shaped section see lens illustration …   Useful english dictionary

  • Lens — (l[e^]nz), n.; pl. {Lenses} ( [e^]z). [L. lens a lentil. So named from the resemblance in shape of a double convex lens to the seed of a lentil. Cf. {Lentil}.] (Opt.) A piece of glass, or other transparent substance, ground with two opposite… …   The Collaborative International Dictionary of English

  • Converging meniscus — Meniscus Me*nis cus, n.; pl. L. {Menisci} ( s[=i]), E. {Meniscuses}. [NL., from Gr. mhni skos, dim. of mh nh the moon.] 1. A crescent. [1913 Webster] 2. (Opt.) A lens convex on one side and concave on the other. [1913 Webster] 3. (Anat.) An… …   The Collaborative International Dictionary of English

  • Meniscus — Me*nis cus, n.; pl. L. {Menisci} ( s[=i]), E. {Meniscuses}. [NL., from Gr. mhni skos, dim. of mh nh the moon.] 1. A crescent. [1913 Webster] 2. (Opt.) A lens convex on one side and concave on the other. [1913 Webster] 3. (Anat.) An interarticular …   The Collaborative International Dictionary of English

  • Lens — 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 …   Medical dictionary

  • lens — I (New American Roget s College Thesaurus) n. refractor, eyeglass, magnifying glass, reading glass. See optical instruments. II (Roget s IV) n. Syn. optical instrument, microscope, camera, eyeglass, spectacles, eyepiece. Types of lenses include:… …   English dictionary for students

  • converging meniscus — a concavoconvex lens …   Medical dictionary

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