Zoom Lens And Image Pickup Device

摘要

A first lens group includes a plano-concave and negative first lens, a catoptric element having a flat object side surface and a flat image side surface, and a first cemented lens, for example. Here, the first cemented lens includes a negative second lens and a positive third lens in order from an object side. A second lens group includes an aperture stop and a positive second cemented lens, for example. The second cemented lens includes a positive fourth lens, a negative fifth lens, and a positive sixth lens in order from the object side. A zoom lens satisfies a conditional expression 1.59

主权项

1. A zoom lens comprising at least a first lens group having a negative refractive power and a second lens group having a positive refractive power in order from an object side and
performing magnification change by changing an interval between each of the lens groups, wherein: an interval between the first lens group and the second lens group is reduced by magnification change from a wide-angle end to a telephoto end; the first lens group includes a catoptric element having a function of bending an optical path by reflecting a light ray; the second lens group includes a cemented lens obtained by cementing three lenses; and the following condition is satisfied:
1.59