convex lens

Noun
  1. Lens such that a beam of light passing through it is brought to a point or focus (synset 103104422)
    is a type of: lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images
    subtypes: sunglass - a convex lens that focuses the rays of the sun; used to start a fire
    same as: converging lens

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