Tuned waveguides

US11175509B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Simo Tammela · Espoo, FI
• Ari Tervonen · Vantaa, FI
• Heikki Juhana Hyvarinen · Kauniainen, FI
• Lasse Pekka Karvonen · Espoo, FI
• Andreas Langner · Alzenau, DE
• Pietari Tuomisto · Tampere, FI

Key dates

• Filing date: Sep 30, 2019
• Grant date: Nov 16, 2021
• Expiry date: Oct 17, 2039

Classification

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

Abstract

The description relate to devices, such as augmented reality and/or virtual reality devices that employ optical waveguides. On example includes a first optical waveguide configured to receive light at an incidence angle and a second optical waveguide positioned in a non-parallel relation to the first optical waveguide. The second optical waveguide can be configured to receive the light through the first optical waveguide at a first location at the incidence angle, transmit the light within the second optical waveguide, and output the light from a second location back toward the first optical waveguide at the incidence angle.