Compact 3X zoom lens

Optical: systems and elements – Lens – With variable magnification

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359715, G02B 1514, G02B 302

Patent

active

056422318

ABSTRACT:
A zoom lens having two units of lens components including from the object side a positive optical unit and a negative optical unit. The zoom lens satisfies the following relationship ##EQU1## where eW is the principal point separation of the zoom lens when said zoom lens operates at a wide angle position and eT is the principal point separation of the zoom lens when said zoom lens operates at the telephoto position.

REFERENCES:
patent: 4772106 (1988-09-01), Ogata et al.
patent: 4815830 (1989-03-01), Sato et al.
patent: 4830476 (1989-05-01), Aoki
patent: 4883346 (1989-11-01), Aoki et al.
patent: 4936661 (1990-06-01), Betensky et al.
patent: 4953957 (1990-09-01), Kobayashi
patent: 4963010 (1990-10-01), Kikuchi
patent: 5071235 (1991-12-01), Mori et al.
patent: 5153777 (1992-10-01), Okada
patent: 5162947 (1992-11-01), Ito
patent: 5168403 (1992-12-01), Umeda et al.
patent: 5218478 (1993-06-01), Itoh
patent: 5268792 (1993-12-01), Kreitzer et al.
patent: 5270867 (1993-12-01), Estelle
patent: 5274504 (1993-12-01), Itoh
patent: 5283693 (1994-02-01), Kohno et al.
patent: 5327290 (1994-07-01), Fukushima
patent: 5418647 (1995-05-01), Ishikawa
patent: 5463499 (1995-10-01), Ito et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Compact 3X zoom lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact 3X zoom lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact 3X zoom lens will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-152373

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.