Zoom lens system and image pickup apparatus including the same

Details Zoom lens system and image pickup apparatus including the same Zoom lens system and image pickup apparatus including the same

2007-07-24

2007-07-24

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S682000, C359S684000

Reexamination Certificate

active

11241657

ABSTRACT:
A zoom lens system includes a first lens unit, a lens unit having a positive optical power placed on an image side of the first lens unit, and a lens unit having a negative optical power placed on the image side of the lens unit having a positive optical power. In the zoom lens system, the lens unit having a negative optical power is closest to the image side. A compact zoom lens system is obtained by adequately setting the movement of each lens unit during zooming and the optical power of each lens unit.

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