Variable focal length lens system having a divergent front lens unit

U.S. Patent Number: 5875059

Abstract: Variable focal length lens system comprises two adjacent lens units, one stationary, the other movable. These lens units are in order from an object side towards an image side (i) A first lens unit possessing divergent refractive power. The first lens unit is the front most lens unit. It consists of a single negative lens component. (ii) A second lens unit possessing convergent refractive power. The second lens unit, includes at least two positive power lens components and an aperture stop.

Inventors: Estelle; Lee Roy (Rochester, NY)

Assignee: Eastman Kodak Company (Rochester, NY)

Application Number: 08/801,373

Issued: 1999-02-23

Expired: 2007-02-23

Classes: 359/682 ; 359/691; 359/717; 359/725; 359/740; 359/742; 359/753; 359/793

Field of search: 359/682,691,717,740,742,753,725,793

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