Zoom lens system

Details Zoom lens system Zoom lens system

2006-08-01

2006-08-01

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S689000

Reexamination Certificate

active

07085067

ABSTRACT:
A zoom lens system includes a negative first lens element, a positive second lens element and a positive third lens element, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, the positive second lens element and the positive third lens element move along the optical axis, while the negative first lens element remains stationary. Furthermore, the positive second lens element is directed to move from the image side toward the object side.

REFERENCES:
patent: 5381269 (1995-01-01), Estelle
patent: 5745301 (1998-04-01), Betensky et al.
patent: 5875059 (1999-02-01), Estelle
patent: 6124984 (2000-09-01), Shibayama et al.
patent: 6515805 (2003-02-01), Hagimori
patent: 6621642 (2003-09-01), Hagimori
patent: 10-232349 (1998-09-01), None
patent: 2002-55278 (2002-02-01), None
patent: 2002-82284 (2002-03-01), None
English Language Abstract of JP 10-232349.
English Language Abstract of JP 2002-55278.
English Language Abstract of JP 2002-82284.
U.S. Appl. No. 10/929,366 to Saori, filed Aug. 31, 2004.
U.S. Appl. No. 10/940,704 to Eguchi, filed Sep. 15, 2004.

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-3654099