Riflescope utilizing gradient index lenses

USH1321H · kind H · statutory invention registration

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Leland G. Atkinson · Rochester, US
• Duncan T. Moore · Fairport, US
• George Nadorff

Key dates

• Grant date: Jun 7, 1994

Classification

• Technology area (CPC —): General

Abstract

Riflescope arrangement includes a tube containing an eye piece section fowed by a relay section which is followed by an objective section. The eye piece, relay and objective sections lie along and are aligned with the optical axis of the riflescope. The front optical element of the objective section is in the form of an axial gradient index element to add a degree of freedom for chromatic and other corrections, without adding an extra element or weight to the riflescope.