Large exit pupil wearable near-to-eye vision systems exploiting freeform eyepieces

US11644671B2 · kind B2 · utility

Assignee

• eSight Corp. · CA

Inventors

• Frank Jones · Carp, CA
• James Benson Bacque · Ottawa, CA
• Robert G. Hilkes · Ottawa, CA
• Mehdi Arezoomand Ersdhadi · Ottawa, CA
• Mark Harris · Village of La Jolla, US
• JON PAWSON · Dorset, CA

Key dates

• Filing date: Mar 17, 2020
• Grant date: May 9, 2023
• Expiry date: Mar 17, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2027/0187
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Within applications for Near-to-Eye (NR2I) displays, irrespective of whether they are for short-term, long-term, low vision, augmented reality, etc., there is a conflicting tradeoff between user comfort, ease of attachment, minimizing intrusiveness and aesthetics which must be concurrently balanced with and are often in conflict with providing an optical vision system within the NR2I display that provides the user with a wide field of view and high image resolution whilst also offering a large exit pupil for eye placement with sufficient eye clearance. Embodiments of the invention address these issues and provide a high performance optical system through the design of the optical eyepiece design to overcome these limitations within a bioptic configuration with laterally disposed displays.