Patent ID: 9264638
Filing Date: 2016-02-16
CPC Classification: G02B,H04N

Claim Text:
1. A zoom lens, comprising, in order from an object side to an image side: a first lens unit having a positive refractive power that does not move for zooming; a second lens unit having a negative refractive power that moves during zooming; and an N-th lens unit having a positive refractive power that does not move for zooming, the N-th lens unit being arranged closest to the image side, wherein the first lens unit comprises, in order from the object side to the image side: wherein the following conditional expressions are satisfied: where f1 represents a focal length of the first lens unit, fw represents a focal length at a wide angle end of the zoom lens, and βnw represents a lateral magnification of the N-th lens unit at a wide angle end.