To propose a lightweight and compact imaging lens which is advantageous in production and composed of a small number of elements by employing aspherical surfaces which have no inflection points as lens surfaces and correcting aberrations for adaptation to high pixels of megaorder. 変曲点を含まない非球面をレンズ面に採用し、メガオーダの高画素に対応できるように収差補正を施して、生産に有利な、構成枚数が少ない軽量でコンパクトな撮像レンズを提案すること。 - 特許庁