Zoom lens, and electronic imaging system using the same

Details Zoom lens, and electronic imaging system using the same Zoom lens, and electronic imaging system using the same

2007-02-13

2007-02-13

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S689000, C359S691000, C359S726000, C359S727000

Reexamination Certificate

active

10406497

ABSTRACT:
The invention relates to a zoom lens that has high optical performance specifications such as high zoom ratios, wide angles of view, reduced F-numbers and limited aberrations, and enables an optical path to be easily bent. The zoom lens comprises a moving lens group B(G2) that has positive refracting power and moves only toward the object side upon zooming from the wide-angle end to the telephoto end, and a lens group A(G1) remaining fixed during zooming, which is located on the object side of the zoom lens with respect to the moving lens group B and has negative refracting power. The moving lens group B is composed of, in order from its object side, a positive lens element, a positive lens element and a negative lens element, three lens elements in all.

REFERENCES:
patent: 5570229 (1996-10-01), Kanamori
patent: 5668668 (1997-09-01), Shibayama et al.
patent: 5914819 (1999-06-01), Kondo et al.
patent: 6016228 (2000-01-01), Uzawa
patent: 6075653 (2000-06-01), Narimatsu et al.
patent: 6088169 (2000-07-01), Ohno
patent: 6104432 (2000-08-01), Nakamura et al.
patent: 6124987 (2000-09-01), Kayanuma et al.
patent: 6185048 (2001-02-01), Ishii et al.
patent: 6204976 (2001-03-01), Nagahara
patent: 6308011 (2001-10-01), Wachi et al.
patent: 6349002 (2002-02-01), Shibayama et al.
patent: 6414791 (2002-07-01), Sugawara
patent: 2001/0017734 (2001-08-01), Ori
patent: 2002/0008920 (2002-01-01), Mihara et al.
patent: 2002/0027721 (2002-03-01), Mihara
patent: 2003/0165019 (2003-09-01), Yamamoto
patent: 2003/0197949 (2003-10-01), Eguchi
patent: 2003/0210471 (2003-11-01), Mihara et al.
patent: 0 906 587 (2002-09-01), None
patent: 1 366 326 (1974-09-01), None
patent: 63-292106 (1988-11-01), None
patent: 03-139607 (1991-06-01), None
patent: 03-158817 (1991-07-01), None
patent: 3203709 (1991-09-01), None
patent: 08-070400 (1996-03-01), None
patent: 08-130702 (1996-05-01), None
patent: 09-211287 (1997-08-01), None
patent: 10-20191 (1998-01-01), None
patent: 11-194274 (1999-07-01), None
patent: 11305312 (1999-11-01), None
patent: 2000-137164 (2000-05-01), None
patent: 200267010 (2000-09-01), None
patent: 2001-021986 (2001-01-01), None
Shashin Kogyo (Photographic Industry), Mar. 2002, pp. 104-105.
Patent Abstracts of Japan, JP 2002-014282, Jan. 18, 2002 (Asahi Optical Co Ltd).
Patent Abstracts of Japan, JP 2002-014285, Jan. 18, 2002 (Asahi Optical Co Ltd).
Patent Abstracts of Japan, JP 2001-100100, Apr. 13, 2001 (Cosina Co Ltd).
Patent Abstracts of Japan, JP 2001-318313, Nov. 16, 2001 (Canon Inc).
Patent Abstracts of Japan, JP 2001-337275, Dec. 7, 2001 (Canon Inc).
Patent Abstracts of Japan, JP 08-248318, Sep. 27, 1996 (Sony Corp).
Patent Abstracts of Japan, JP 2000-131610, May 12, 2000 (Sony Corp).
Patent Abstracts of Japan, JP 07-005360, Jan. 10, 1995 (Olympus Optical Co Ltd).

Affiliated with

Also associated with

Rating

Zoom lens, and electronic imaging system using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zoom lens, and electronic imaging system using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens, and electronic imaging system using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3837528