Taking lens apparatus

Details Taking lens apparatus Taking lens apparatus

2003-07-01

2008-08-05

Hannett, James M (Department: 2622)

Television

Camera, system and detail

Optics

C348S345000, C348S240300

Reexamination Certificate

active

07408583

ABSTRACT:
A taking lens apparatus includes a zoom lens system that is composed of a plurality of lens units and that achieves zooming by varying the distances between the lens units and an image sensor that converts the optical image formed by the zoom lens system into an electrical signal. The zoom lens system has, from the object side,: a first lens unit having a negative optical power, a second lens unit disposed on the image side of the first lens unit and having a negative optical power, a third lens unit disposed on the image side of the second lens unit and having a positive optical power, a fourth lens unit disposed on the image side of the third lens unit and having a positive optical power, and a fifth lens unit disposed on the image side of the fourth lens unit and having a positive optical power. During zooming, the first lens unit remains stationary relative to the image sensor, and the second and third lens units move.

REFERENCES:
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patent: 2000-131610 (2000-05-01), None
U.S. Appl. No. 09/821,532, filed Mar. 28, 2001, Yamamoto et al.
U.S. Appl. No. 10/390,360, filed Mar. 17, 2003, Iwasawa et al.

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