Intel Corporation

North Corporation

Google Inc.

Jonathan Masson

Lucio Kilcher

Christophe Le Gros

Nicolas Abele

Mickael Guillaumee

Eric Tremblay

Dominique Marchal

Holographic optical elements for augmented reality (AR) devices and methods of manufacturing and using the same are disclosed. An example AR device includes a holographic optical element (HOE) including a recorded optical function, and a projector to emit light toward the HOE. The HOE reflects the light based on the optical function to produce a full image corresponding to content perceivable by a user viewing the reflected light from within an eyebox. A first portion of the content is viewable from a first location within the eyebox. A second portion of the content is viewable from a second location within the eyebox. The first portion including different content than the second portion that is non-repeating between the first and second portions.

Holographic optical elements for augmented reality devices and methods of manufacturing and using the same

Disclosed herein are devices and techniques related to optical diffusers and particularly, diffusers to reduce moir&#xe9; patterns in a projected image. The device may comprise an array of micro-focal elements or reflectors and a light polarization grid. The light polarization grid configured to change a polarization between portions of a light beam and the micro-focal elements of reflectors to diffuse the light beam such that portions of the light beam having a difference in polarization may meet at a point.

Anti-moir&#xe9; pattern diffuser for optical system

A projection device According to the present invention there is provided a projection device () comprising, a light source () which can provide light beams (), wherein the light beams () can be used to define one or more pixels of a virtual image (); a MEMS micro mirror () which is arranged to receive the light beams () provided by the light source (), and wherein the MEMS micro mirror () can oscillate about at least one oscillation axis () to scan the light beams (); a reflective element (), which comprises a plurality of convex reflective projections (), and wherein the reflective element () is arranged so that light beams () reflected by the MEMS micro mirror () are incident on said convex reflective projections (), so that the light beams () are reflected by the convex reflective projections (); a beam combiner (), wherein the beam combiner is arranged to receive the light beams () which are reflected by the convex reflective projections () wherein the beam combiner () is configured to at least partially reflect the light beams () which it receives so that the light beams () can form a virtual image () which is visible when viewed from within an eyebox (). There is further provided a corresponding method of projecting a virtual image.

Projection device

An optical assembly, and in particular an optical assembly which uses a microlens array or a micromirror array to reduce speckle. It further concerns an optical component which comprises a micromirror array.

Optical assembly

According to the present invention there is provided a method of reducing speckle effects in a projected image which is displayed on a display surface, comprising the steps of transmitting an input light beam to a first interferometer, generating a plurality of primary transmit beams at the first interferometer using the input light beam, using the plurality of primary transmit beams to generate interference fringes at a display surface.

Method for reducing speckle

Anti-moir&#xe9; pattern diffuser for optical systems

An image projector is disclosed that can include a light source and a MEMS mirror to receive a light beam emitted by the light source and oscillate to scan the light beam across multiple-beam-generators that each include a planar beam splitter arranged to receive the light beam and generate multiple beams to project an image.

Growing community of inventors

Pully, Switzerland

Jonathan Masson