Zoom lens system

Details Zoom lens system Zoom lens system

1998-03-23

1999-12-28

Sugarman, Scott J.

Optical: systems and elements

Lens

With variable magnification

G02B 1514

Patent

active

060089520

ABSTRACT:
A zoom lens comprises, in order from the image magnifying side to the image reducing side, a negative power first lens group which is moved axially for focusing a lens system of the zoom lens and fixed during zooming the lens system, a positive power second lens group, a positive power third lens group and a negative power fourth lens group which are moved axially relative to each other and relative to the first lens group and a fifth lens group which has a positive power and remains fixed during focusing and zooming the lens system, the zoom lens satisfying the following conditions:

REFERENCES:
patent: 5668668 (1997-09-01), Shibayama et al.
patent: 5805350 (1998-09-01), Yamamoto

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-2386445