concavoconvex lens

concavoconvex lens
a lens that has one concave surface and one convex; the concave surface is of greater curvature than the convex. Called also periscopic convex l., converging meniscus l., and positive meniscus l.

Medical dictionary. 2011.

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  • 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

  • convex lens periscopic — concavoconvex l …   Medical dictionary

  • meniscus lens converging — concavoconvex l …   Medical dictionary

  • meniscus lens positive — concavoconvex l …   Medical dictionary

  • meniscus lens — a crescent shaped lens with one concave surface and one convex; the surfaces have different degrees of curvature. See concavoconvex l. and convexoconcave l …   Medical dictionary

  • converging meniscus — a concavoconvex lens …   Medical dictionary

  • positive meniscus — a concavoconvex lens …   Medical dictionary

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