Zoom lens having a wide angle of view and a high zooming...

Details Zoom lens having a wide angle of view and a high zooming... Zoom lens having a wide angle of view and a high zooming...

2007-08-14

2007-08-14

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S683000, C359S714000, C359S740000, C359S763000, C359S766000

Reexamination Certificate

active

11487932

ABSTRACT:
A zoom lens with a wide angle of view and a high zooming ratio and a camera employing the zoom lens. The zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, and a fifth lens group having a positive refractive power, wherein the first through fifth lens groups are sequentially arranged from an object side toward an image side. The first through fifth lens groups are moved during zooming between wide angle position to telephoto position in a manner that increases the distances between the first and second lens groups, between the third and fourth lens groups, and between the fourth and fifth lens groups and decreases a distance between the second and third lens groups. The zoom lens includes the five lens groups that are positive, negative, positive, negative, and positive, respectively, thus achieving a wide angle of view and a high zooming ratio.

REFERENCES:
patent: 2003/0165020 (2003-09-01), Satori et al.
patent: 10-111457 (1998-04-01), None
patent: 2001-350093 (2001-12-01), None
patent: 2003-255228 (2003-09-01), None
patent: 2003-287681 (2003-10-01), None

Affiliated with

Also associated with

Rating

Zoom lens having a wide angle of view and a high zooming... 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 having a wide angle of view and a high zooming..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens having a wide angle of view and a high zooming... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3872380