Methods and systems for augmented reality display with dynamic field of view

US11656480B2 · kind B2 · utility

Assignee

• Magic Leap, Inc. · US

Inventors

• Chieh Chang · Cedar Park, US
• Victor Kai Liu · Mountain View, US
• Samarth Bhargava · Saratoga, US
• Ling Li · Hsinchu, TW
• Sharad D. Bhagat · Austin, US
• Christophe Peroz · San Francisco, US
• Jason Donald Mareno · Raleigh, US

Key dates

• Filing date: Jul 10, 2020
• Grant date: May 23, 2023
• Expiry date: Jan 15, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/0172
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A dynamic eyepiece for projecting an image to an eye of a viewer includes a waveguide layer having an input surface, an output surface opposing the input surface, and a periphery. The waveguide layer is configured to propagate light therein. The dynamic eyepiece also includes a mechanical structure coupled to at least a portion of the periphery of the waveguide layer. The mechanical structure is operable to apply a first mechanical force to the at least a portion of the periphery of the waveguide layer to impose a first surface profile on the output surface of the waveguide layer and apply a second mechanical force to the at least a portion of the periphery of the waveguide layer to impose a second surface profile different from the first surface profile on the output surface of the waveguide layer.