Zoom lens
AssigneeOpto Engineering S.P.A.
InventorsNicolò Bassoli, Luca Rizzotto, Andrea Bertolucci
Life of this patent
Estimating the term…
Abstract
A zoom lens is provided which has at least one front optical group with fixed optical power, adapted to receive rays from an observed object, at least one rear optical group with fixed optical power, adapted to convey the rays towards an image plane of a sensor, a lens opening positioned between the front optical group and the rear optical group, a front adaptive lens positioned between the at least one front optical group and the lens opening, and a rear adaptive lens positioned behind the lens opening. The front and rear adaptive lenses are controllable to vary the respective optical power to adjust focal length, magnification, and working distance of the zoom lens.
Claims15
A zoom lens, comprising at least one front optical group with fixed optical power, adapted to receive rays from an observed object, at least one rear optical group with fixed optical power, adapted to convey said rays towards an image plane of a sensor, a lens opening positioned between the at least one front optical group and the at least one rear optical group, a front adaptive lens positioned between the at least one front optical group and the lens opening, and a rear adaptive lens positioned behind the lens opening, wherein the front and rear adaptive lenses are controllable to vary respective optical power so as to adjust focal length, magnification, and working distance of the zoom lens.
A vision device comprising a zoom lens that comprises at least one front optical group with fixed optical power, adapted to receive rays from an observed object, at least one rear optical group with fixed optical power, adapted to convey said rays towards an image plane of a sensor, a lens opening positioned between the at least one front optical group and the at least one rear optical group, a front adaptive lens positioned between the at least one front optical group and the lens opening, and a rear adaptive lens positioned behind the lens opening, wherein the front and rear adaptive lenses are controllable to vary respective optical power so as to adjust focal length, magnification, and working distance of the zoom lens, a user interface and a controller operatively connected to the user interface and the front and rear adaptive lenses, the controller being configured to control the optical power of the front and rear adaptive lenses as a function of a working distance and a magnification selectable by a user through the user interface.
Dependencies are inferred from the claim text.