ZOOM LENS AND IMAGING DEVICE INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a zoom lens, easily securing optical performance both on the axis/outside of the axis while advantageous to miniaturization, securing angle of view at wide angle end and attaining high variable power performance. Ž

SOLUTION: The zoom lens includes, in the order from the object side, a first lens unit having negative refractive power, a second lens unit having positive refractive power and a third lens unit having refractive force, wherein during zooming from the wide angle end to the telephoto end, the distance between the first lens unit and the second lens unit decreases and the distance between the second lens unit and the third lens unit changes. The first lens unit includes, in the order from the object side, a first lens which is a negative lens and a second lens, which is a positive lens, wherein the negative lens and the positive lens meet the following conditional expressions (1), (2), (3). (1)1.8511<2.35, (2) 2.0112<2.35, and (3)18.58<νd11-νd12<50, wherein the nd11is a refractive index to a d-line of a first lens among the first lens unit, the nd12is a refractive index to a d-line of a second lens among the first lens unit, the νd11is an Abbe number based on the d-line of the first lens among the first lens unit, and the νd12is an Abbe number based on the d-line of the second lens among the first lens unit. Ž

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