The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Jul. 14, 2022
Nokia Technologies Oy, Espoo, FI;
Toni Johan Jarvenpaa, Akaa, FI;
Marja Pauliina Salmimaa, Tampere, FI;
Jyrki Sakari Kimmel, Tampere, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
An apparatus includes a first light waveguide including: a first in-coupling diffraction grating to in-couple first input beams of light into the first light waveguide from a first light engine, a first expander to expand the first input beams of light to form first expanded beams of light, a first out-coupling diffraction grating to out-couple the first expanded beams of light; and a second light waveguide including: a second in-coupling diffraction grating to in-couple second input beams of light into the second light waveguide from a second light engine, a second expander to expand the second input beams of light to form second expanded beams of light, and a second out-coupling diffraction grating to out-couple the second expanded beams of light. The first light waveguide provides a first image, and the second light waveguide provides a second image.