Augmented reality display having multi-element adaptive lens for changing depth planes

US11693247B2 · kind B2 · utility

Assignee

• Magic Leap, Inc. · US

Inventors

• Jason Schaefer · Coral Springs, US
• Hui-Chuan Cheng · Pembroke Pines, US
• David Manly · Fort Lauderdale, US
• Jahja I. Trisnadi · Cupertino, US
• Clinton Carlisle · Palo Alto, US
• Michael Anthony Klug · Austin, US

Key dates

• Filing date: Jan 14, 2022
• Grant date: Jul 4, 2023
• Expiry date: Jan 14, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/294
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.