concave lens


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concave lens

, convex lens - A concave lens is thinner at the center; a convex lens is thicker at the center.
See also related terms for thicker.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.concave lens - a lens such that a parallel beam of light passing through it is caused to diverge or spread outconcave lens - a lens such that a parallel beam of light passing through it is caused to diverge or spread out
lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images
References in periodicals archive ?
The optometrist's duty is to help the child see distant objects clearly so we prescribe a concave lens that will bring the image shell at the fovea into focus, but this restores the RPHD, possibly driving further myopic changes.
Substituting a concave lens for the ocular made the image appear right-side up, but reduced magnification.