Patent ID: 9195032
Filing Date: 2015-11-24
Classification: G02B,H04N

Abstract:
1. An image pickup apparatus equipped with a zoom lens with a bent optical path, comprising: a zoom lens including a reflecting member having a reflecting surface that bends the optical path; and an image pickup element disposed on the image side of the zoom lens and having an image pickup surface that receives an image formed by the zoom lens and converts it to an electrical signal, wherein the zoom lens comprises, in order from the object side to the image side, a first lens unit including the reflecting member and having a negative refractive power, a second lens unit having a positive refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power, during zooming from the wide angle end to the telephoto end, the second lens unit moves closer to the first lens unit only toward the object side, the third lens unit moves in such a way that it becomes closest to the second lens unit at an intermediate focal length position in the course of zooming from the wide angle end to the telephoto end as compared to the state at the wide angle end and the state at the telephoto end, the fourth lens unit moves, and the following conditional expression (1) is satisfied: where D