Zoom lens system and image pickup apparatus having the same

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

2006-10-09

2008-10-28

Choi, William C (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

Reexamination Certificate

active

07443606

ABSTRACT:
At least one exemplary embodiment is directed to a zoom lens system, which includes, in order from an object side to an image side, a first lens unit of positive optical power, a second lens unit of negative optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power. During zooming, each of the lens units moves.

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