Zoom lens system

Details Zoom lens system Zoom lens system

1993-02-09

1993-10-12

Lerner, Martin

Optical: systems and elements

Lens

With variable magnification

359748, G02B 1514

Patent

active

052531147

ABSTRACT:
A zoom lens system is arranged in three lens groups, in the order from object side to image plane side, that the first lens group has negative refractive power, the second lens group has positive refractive power, and the third lens group has negative refractive power. During zooming operation from wide angle position to telephoto position, the three lens groups vary the separations therebetween and together move toward the object side of the lens system. The first lens group of the lens system is composed of a negative lens element and a positive lens element.

REFERENCES:
patent: 5042926 (1991-08-01), Kikuchi
patent: 5062695 (1991-11-01), Iwasaki
patent: 5182673 (1993-01-01), Kikuchi et al.
patent: 5204780 (1993-04-01), Sakamoto
patent: 5216547 (1993-06-01), Ogata

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1909607