Zoom lens system

Details Zoom lens system Zoom lens system

1998-10-19

2000-08-08

Epps, Georgia

Optical: systems and elements

Lens

With variable magnification

359569, 359570, 359676, 359680, G02B 1514

Patent

active

061010448

ABSTRACT:
A zoom lens system has, from the object side, a first lens unit having a negative optical power and including at least one diffractive optical surface and a second lens unit having a positive optical power and including at least one diffractive optical surface. A distance between the first and second lens units varies during zooming operation.

REFERENCES:
patent: 5268790 (1993-12-01), Chen
patent: 5283693 (1994-02-01), Kohno et al.
patent: 5493441 (1996-02-01), Chipper
patent: 5619381 (1997-04-01), Anderson
patent: 5745301 (1998-04-01), Betensky et al.
patent: 5872658 (1999-02-01), Ori

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-1156053