Field inversion waveguide using micro-prism array

US10281655B2 · kind B2 · utility

Assignee

• Qioptiq Limited · GB

Inventors

• John Roberts · Ottawa, CA
• James Babington · Prestatyn, GB

Key dates

• Filing date: Oct 28, 2015
• Grant date: May 7, 2019
• Expiry date: Feb 18, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2027/0123
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A field inverting optical waveguide is disclosed. The waveguide is configured to convey electromagnetic radiation from an ingress end to an egress end along an optical path. The waveguide includes an optically flat input surface disposed at the waveguide ingress end, and an exit surface disposed substantially opposite the input surface at the waveguide egress end. The exit surface includes an array of prisms projecting outward from or inward to the exit surface. The input surface and the exit surface are arranged substantially orthogonally to the optical path.