Dyonics, Inc.

Dennis C Leiner

Rochelle Prescott

An optical system and method is disclosed for substantially correcting an image transmitted through at least one gradient index lens for chromatic aberration by means of a homogeneous lens affixed thereto. In preferred embodiments, at least one of the gradient index lenses is a relay lens. The length of the relay lens is varied about an integral number of half periods and the homogeneous lens has a positive or negative curvature, depending upon the nature of the correction required. A method of determining the curvature of the homogeneous lens and the length of the relay lens for the desired degree of correction is also claimed.

Chromatic aberration corrected gradient index lens system

An optical system comprising at least two gradient index lenses further includes spacer means of substantially homogenous substance affixed therebetween to provide increased light throughput by substantial maximization of the optical invariant of the system.

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Andover, MA, United States of America

Dennis C Leiner