Back to results
US 2020/0026081 A1Published application
Augmented Reality Apparatus
AssigneeNokia Technologies Oy
InventorToni JARVENPAA
Life of this patent
Estimating the term…
Abstract
According to various but not necessarily all embodiments of the invention, there is provided an apparatus including an optical engine configured to provide one or more light beams, a camera, a waveguide configured to guide the one or more light beams wherein the waveguide includes a diffractive in-coupling grating and at least one diffractive out-coupling, wherein the at least one out-coupling grating is configured to out-couple the one or more light beams towards an eye of a user and towards the camera.
Claims15
An apparatus comprising
- an optical engine configured to provide one or more light beams,
- a camera,
- a waveguide configured to guide the one or more light beams wherein the waveguide comprises a diffractive in-coupling grating, and at least one diffractive out-coupling grating
- wherein the at least one diffractive out-coupling grating is configured to out-couple the one or more light beams towards an eye of a user and towards the camera.
1 more element
A method comprising
- guiding by a waveguide one or more light beams, provided by an optical engine,
- wherein the waveguide comprises a diffractive in-coupling grating, and at least one diffractive out-coupling grating,
- wherein the at least one diffractive out-coupling grating is configured to out-couple the one or more light beams towards an eye of a user and towards a camera.
Dependencies are inferred from the claim text.