IMAGING LENS SYSTEM

Abstract: an imaging lens system includes a first lens; a second lens; a third lens having a concave object-side surface in a paraxial region thereof; a fourth lens; a fifth lens; a sixth lens; and a seventh lens, wherein the first to seventh lenses are sequentially disposed in ascending numerical order along an optical axis of the imaging lens system from an object side of the imaging lens system toward an imaging plane of the imaging lens system, and the conditional expression ttl/(2*imght)<0.6 is satisfied, where ttl is a distance along the optical axis from an object-side surface of the first lens to the imaging plane, and 2*imght is a diagonal length of an effective imaging area of the imaging plane.

Inventor(s): Sang Hyun JANG, Ju Hwa SON

CPC Classification: G02B13/0045 ({having five or more lenses})

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