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

2006-07-11

2006-07-11

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S683000, C359S680000, C359S681000, C359S682000, C359S716000, C359S740000, C359S753000, C359S784000, C359S781000

Reexamination Certificate

active

07075733

ABSTRACT:
A zoom lens system in which reductions in the number of lenses and entire lens length are realized is provided. The zoom lens system includes, in order from an object side to an image side, a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. During zooming from a wide-angle end to a telephoto end, an interval between the first lens unit and the second lens unit reduces and an interval between the second lens unit and the third lens unit changes. An aspherical lens is used for a positive lens element of the first lens unit. Shapes of respective lens elements composing the first lens unit, an interval therebetween, and the like are suitably set.

REFERENCES:
patent: 4662723 (1987-05-01), Imai
patent: 4733952 (1988-03-01), Fujioka
patent: 5434710 (1995-07-01), Zozawa
patent: 5663836 (1997-09-01), Ogata
patent: 5872660 (1999-02-01), Kohno et al.
patent: 6025961 (2000-02-01), Kohno et al.
patent: 6191896 (2001-02-01), Itoh
patent: 6233099 (2001-05-01), Itoh
patent: 6646815 (2003-11-01), Nobe
patent: 6671103 (2003-12-01), Itoh
patent: 6710934 (2004-03-01), Park
patent: 6735020 (2004-05-01), Sekita
patent: 6919994 (2005-07-01), Tanaka
patent: 6943962 (2005-09-01), Sekita
patent: 6-66008 (1994-08-01), None
patent: 7-52256 (1995-06-01), None
patent: 10-104520 (1998-04-01), None
patent: 11-84242 (1999-03-01), None
patent: 11-84243 (1999-03-01), None
patent: 11-84243 (1999-03-01), None
patent: 2001-147370 (2001-05-01), None

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