Convex+lens
61Plano-convex — is most commonly used to refer to: *Plano convex lenses, in optics; see Lens (optics)#Types of simple lenses *The plano convex type of mudbrick, used by the ancient Sumerians …
62concavo-convex — /kon kay voh kon veks /, adj. 1. Also, convexo concave. concave on one side and convex on the other. 2. Optics. pertaining to or noting a lens in which the concave face has a greater degree of curvature than the convex face. [1670 80; < L… …
63convexoconcave lens — a lens that has one convex and one concave surface; the convex surface is of greater curvature than the concave. Called also periscopic concave l., diverging meniscus l., and negative meniscus l …
64Achromatic lens — Achromatic Ach ro*mat ic, a. [Gr. ? colorless; a priv. + ?, ?, color: cf. F. achromatique.] 1. (Opt.) Free from color; transmitting light without decomposing it into its primary colors. [1913 Webster] 2. (Biol.) Uncolored; not absorbing color… …
65crown lens — n. a lens made of crown glass; specif., the convex member of an achromatic lens …
66concavo-convex — con•ca•vo con•vex [[t]kɒnˈkeɪ voʊ kɒnˈvɛks[/t]] adj. 1) math. Also, convexo concave concave on one side and convex on the other. 2) opt of or designating a lens in which the concave face has a greater degree of curvature than the convex face •… …
67plano-convex — [plā΄nōkän veks′, plā΄nōkän′veks΄] adj. having one side plane and the other convex: see LENS …
68plano-convex — “+ adjective Etymology: plan (II) + convex : flat on one side and convex on the other see lens illustration …
69Cylindrical lens — Cylindric Cy*lin dric (s? l?n dr?k), Cylindrical Cy*lin dric*al ( dr? kal), a. [Gr. kylindriko s, from ky lindros cylinder: cf. F. cylindrique.] Having the form of a cylinder, or of a section of its convex surface; partaking of the properties of… …
70fish-eye lens — A wide angle photographic lens that views an extremely high and wide area to an angle of about 180 degrees, and that (when uncropped) gives a circular image in which subjects seen at the center typically appear nearer than those seen at the… …
