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Light rays converge through a plano-convex lens.


 (plā′nō-kŏn-vĕks′, -kŏn′vĕks′)
Flat on one side and convex on the other: a plano-convex lens.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(of a lens) having one side convex and the other side plane
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌpleɪ noʊ kɒnˈvɛks, -kən-)

pertaining to or noting a lens that is plane on one side and convex on the other.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The fiber is laser-fused directly to a plano-plano silica rod (endcap) or plano-convex silica lens, resulting in an index matched transition from fiber to lens without any glass to air interface to cause unwanted back-reflections.
Diagnosis: Basidiomata clitocyboid, pileus 13-30 mm diam., infundibuliform to plano-convex, white to pastel grey, lamellae decurrent, stipe cylindrical, with mycelial pad and rhizomorphs, basidiospores 4-5 x 3-4.3 [mu]m, globose to subglobose, smooth to slightly angled in polar view, cystidia absent, pileipellis a transition between trichocutis and a trichoderm, clamp connection absent.
They attach to a variety of microscope systems and feature designs made up of an achromatic doublet and a single plano-convex lens, where both convex surfaces face one another.
Introduced in 1880, it consists of a cemented triplet field lens paired with a single-element biconvex or plano-convex eye lens.
Pileus 30-55 mm diam., plano-convex, broadly umbonate, undulating surface, deep cinnamon to red-brown to dark brick, central disc darker, in mature specimens surface zonate, surface smooth, viscid, shiny, cap margin clearly white to cream with dentate processes, involute.
Manufactured with dimensional tolerances ranging from [+ or -] 0.001" to [+ or -] 0.005", depending upon configuration, Laser Research ZnSe and ZnS Optics can be supplied as plano-convex, plano-concave, and as wedged-windows in round, rectangle, and square shapes that can include steps, holes, and other special design features.
A fiber-optic probe (Emvision LLC) with one centered excitation fiber (200 [micro]m core) and seven surrounding collection fibers (300 [micro]m core) and a plano-convex lens that covers in front of the fibers limiting the working distance of the probe to be 0-400 [micro]m specified in the specification sheet.
Laser Research ZnSe Lenses for multi-kilowatt cutting lasers include plano-convex and meniscus configurations offered in 1.5 to 2.5" dia.
RMI's laser beam expanders are made with high precision plano-concave and plano-convex lenses - available in a wide range of materials.
The 250-W luminaire features an enclosed 360-deg rotating barrel, a locking shutter and a heat-resistant Plano-Convex lens.
a A pair of plano-convex lenses with convex surfaces facing inwards separated by an air gap