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

2010-03-29

2011-12-27

Harrington, Alciai M (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S689000

Reexamination Certificate

active

08085478

ABSTRACT:
Provided is a compact and high optical performance zoom lens system, including, in order of from an object side toward an image side: a first lens unit with a negative refractive power; a second lens unit with a positive refractive power; and a third lens unit with the positive refractive power, the first, second, and third lens units moving to perform zooming. The first lens unit includes a first lens element with the negative refractive power, and a second lens element with the positive refractive power in order of from the object side toward the image side, and in which a refractive index of a material of the first lens element (N11), an Abbe number of a material of the second lens element (ν12), and the radii of curvatures of lens surfaces of the first lens element on the object side and the image side (R11a, R11b) are appropriately set.

REFERENCES:
patent: 6498687 (2002-12-01), Sekita et al.
patent: 6822808 (2004-11-01), Nanba et al.
patent: 7113347 (2006-09-01), Nanba et al.
patent: 7215483 (2007-05-01), Sekita
patent: 7295381 (2007-11-01), Ito
patent: 7333275 (2008-02-01), Sekita
patent: 2010/0060993 (2010-03-01), Kanai et al.
patent: 2010/0265594 (2010-10-01), Matsui et al.
patent: 101666906 (2010-03-01), None
patent: 2004-061675 (2004-02-01), None

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