Zoom lens system and camera including the same

Details Zoom lens system and camera including the same Zoom lens system and camera including the same

2011-01-18

2011-01-18

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S689000

Reexamination Certificate

active

07872808

ABSTRACT:
A zoom lens system includes, in order from an object side to an image side, a first lens unit having positive optical power, a second lens unit having negative optical power, and a rear unit including at least one lens unit. During zooming, at least two lens units move so that intervals between the lens units adjacent to each other change. In such a zoom lens system, the second lens unit consists of a negative lens component formed of at least one material and a positive lens element, which are arranged in the stated order from the object side to the image side. A refractive index and an Abbe number of the at least one material forming the negative lens component and a refractive index of a material forming the positive lens element are appropriately set, whereby high optical performance is obtained.

REFERENCES:
patent: 2005-106925 (2005-04-01), None
patent: 2005-338740 (2005-12-01), None
patent: 2006-084887 (2006-03-01), None
patent: 2007-171371 (2007-07-01), None

Affiliated with

Also associated with

Rating

Zoom lens system and camera including 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 system and camera including the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens system and camera including the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2627503