Electronic imaging apparatus

Details Electronic imaging apparatus Electronic imaging apparatus

2008-03-04

2008-03-04

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S676000, C359S680000, C359S683000, C359S691000, C359S717000, C359S740000, C359S793000, C396S085000

Reexamination Certificate

active

07339744

ABSTRACT:
An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with negative power and a second lens unit with positive power, in which lens components having refracting power in the first lens unit are only a single biconcave negative lens element located at the most object-side position and a positive lens component located at the most image-side position; an electronic image sensor placed on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the shape thereof. The zoom lens system satisfies the following conditions in focusing of a nearly infinite object point:in-line-formulae description="In-line Formulae" end="lead"?0.85<|y07/(fw·tan ω07w)|<0.97in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0.75<|y10/(fw·tan ω10w)|<0.93in-line-formulae description="In-line Formulae" end="tail"?where fwis the focal length of the entire zoom optical system at a wide-angle position, y10is a distance from the center of an effective imaging surface of the electronic image sensor to a point furthest from the center, y07is an image height expressed by 0.7 y10, and ω07wis an angle made by a direction of an object point corresponding to an image point, connecting the center of the effective imaging surface of the electronic image sensor at the wide-angle position and the position of the image height y07, with the optical axis.

REFERENCES:
patent: 6995924 (2006-02-01), Sato
patent: 2002/0027721 (2002-03-01), Mihara
patent: 2003/0206352 (2003-11-01), Mihara et al.
patent: 2004/0201902 (2004-10-01), Mihara et al.
patent: 2005/0207024 (2005-09-01), Mihara
patent: 10-213745 (1998-08-01), None
patent: 2002-072095 (2002-03-01), None
patent: 2004-163477 (2004-06-01), None

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