Lens system

Abstract

A lens system includes a first lens having a negative refractive power, a second lens having a refractive power and a concave object-side surface in a paraxial region thereof, a third lens having a refractive power, a fourth lens having a negative refractive power, a fifth lens having a refractive power, a sixth lens having a positive refractive power, a seventh lens having a refractive power, and an eighth lens having a positive refractive power, wherein the first to eighth lenses are sequentially arranged in ascending numerical order along an optical axis of the lens system away from a light source toward an imaging plane of the lens system.

Dependencies are inferred from the claim text.