Facebook Technologies, LLC

Meta Platforms Technologies, LLC

Karol Constantine Hatzilias

Robin Sharma

Andrew John Ouderkirk

Christopher Yuan-Ting Liao

Qi Zhang

Robert Dale Cavin

Katherine Marie Smyth

Gregory Olegovic Andreev

Neeraj Choubey

Bo Asp Andersen

Christopher Yuan Ting Liao

Martin Henrik Tall

Sharvil Shailesh Talati

Thomas Scott Murdison

Guohua Wei

Andre Golard

Kelly Ingham

Immo Andreas Schuetz

Ying Geng

Sebastian Sztuk

Kurt Jenkins

Maik Andre Scheller

Javier San Agustin Lopez

Kirk Erik Burgess

John M Cooke

Paul Armen Tchertchian

Yusufu Njoni Bamaxam Sulai

Sheng Ye

Alexander Jobe Fix

Yu Shi

Nihar Ranjan Mohanty

Tamer Elazhary

Elias Daniel Guestrin

Nicholas McGee

Joseph S Corry

Alexander Randon Cope

Michiel Koen Callens

Lu Lu

Giuseppe Calafiore

Vincenzo Casasanta, Iii

Behnam Bastani

Matthew E Colburn

Afsoon Jamali

Tanya Malhotra

Matthieu Charles Raoul Leibovici

Gang Li

Ming Lei

Kun Liu

Pablo Francisco Faundez Hoffmann

Jeb Wu

John Goward

Selso Luanava

Nagi H Elabbasi

Mohamed Tarek Ahmed El-Haddad

Sang-Ik Cho

Francesco Larocca

Jixu Chen

Sho Nakahara

Carl Chancy

Erfan M Fard

Matthew James Hancock

Edbert Jarvis Sie

An apparatus, system, and method for an eye tracking system for a head-mounted device include a light source, an image sensor, and a frame tracking system. The light source and image sensor may be configured to determine absolute and relative eye orientations. The frame tracking system may be configured to determine the displacement of a head-mounted device frame relative to the face of the user. The frame tracking system may provide displacement data for the displacement of the head-mounted device frame to the eye tracking system to enable the eye tracking system to compensate for frame slippage, frame jostling, or other frame displacement (relative to the face of the user). The frame tracking system may include one or more position sensors disposed on the head-mounted device frame and logic configured to determine displacement data using information from the one or more position sensors.

Frame tracking system for a head-mounted device

A display waveguide is configured to direct a first portion of display light to an eye along a first optical path. A disparity waveguide is configured to direct a second portion of the display light to a disparity sense circuit along a second optical path separated from the first optical path.

Waveguide disparity sensing

An optical assembly is configured to receive visible scene light at the backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly includes a dimming element disposed on the optical path, where the dimming element includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. A display layer is disposed on the optical path between the eyeward side of the optical assembly and the dimming element. The display layer is configured to direct visible display light toward the eyeward side and also to direct activation light to the dimming element, where the activation light is within the range of light wavelengths to activate a darkening of the photochromic material to dim the visible scene light.

Dimming control with display-directed activation light for an optical assembly

The disclosure includes near-eye optical elements configured to suppress stray infrared light. Infrared light sources illuminate an eyebox area. A combiner layer may receive reflected infrared light and direct the reflected infrared light to a camera.

Beam shaping optic for light sources

A method for calibrating eye tracking data for a head wearable optical device includes receiving eye tracking data from an imaging device oriented towards a combiner. The method includes determining a gaze direction of an eye of a user based on the eye tracking data. The method includes receiving calibration data from the imaging device that includes an indication of positions of one or more calibration indicators. The method includes determining the gaze direction based at least in part on the calibration data received from the imaging device (or factors adjusted by the calibration data).

Systems and methods for calibrating eye tracking

A light source structure includes a vertical cavity surface-emitting laser (VCSEL) device having a top surface and at least one side surface substantially perpendicular to and adjoining the top surface. The VCSEL device is configurable to output directed emission of light through the top surface. The light source structure also includes a light barrier surrounding at least a top portion of the VCSEL device and separated from the at least one side surface. The light barrier is configured to receive spontaneous emission out of the VCSEL device through the at least one side surface.

Vertical cavity surface-emitting laser (VCSEL) with a light barrier

A near-eye optical assembly includes a display waveguide and an optical structure. The display waveguide is configured to receive display light and to direct the display light to an eye of a user. The optical structure includes an input coupler, an optical path, and an output coupler. The input coupler is disposed to receive a portion of the display light that propagates through the waveguide. The optical path directs the portion of the display light from the input coupler to an output coupler that is configured to provide the received portion of the display light to a disparity sense circuit.

Active disparity sensing of head mounted display

The disclosed optical lens assemblies may include a deformable optical element including a substantially transparent transducer configured to deform, and thus change at least one optical property of, the deformable optical element. At least a portion of the substantially transparent transducer may be positioned within a substantially transparent optical aperture of the optical lens assembly. Various head-mounted displays incorporating such an optical lens assembly, and methods of fabricating the same, are also disclosed.

Optical lens assemblies

An optical system includes an illumination layer, an optical combiner, and an active optics block. The illumination layer includes an array of point light sources configured to emit calibration light. The optical combiner is configured to pass visible light to a front side of the optical system and to direct the calibration light to a camera that generates an image in response to the calibration light. The image includes an array of points corresponding to the array of point light sources. The active optics block includes an adjustable lens disposed between the illumination layer and the optical combiner and is configured to pass the calibration light to the optical combiner and to focus the visible light. The active optics block is further configured to adjust an optical power of the adjustable lens based on the image of the array of points.

Active optics feedback and calibration

A near-eye optical device includes a transparent layer, an in-field illuminator, and a diffractive optical element (DOE). The in-field illuminator is configured to emit near-infrared light centered around a first wavelength. The diffractive optical element is configured to be illuminated by the near-infrared light emitted by the in-field illuminator. The DOE generates a structured light projection that includes dots that expand as the structured light projection propagates farther from the DOE. The structured light projection is directed to illuminate an eyebox.

In-field illuminator for eye depth sensing

A device includes a light source, a waveguide layer, and a light director layer. The light source emits illumination light. The waveguide layer includes a cladding layer and an optical waveguide. The cladding layer provides a top planar surface of the waveguide layer and the optical waveguide is immersed in the cladding layer and includes a light input coupler. The light director layer includes a bottom planar surface that is disposed on the top planar surface of the waveguide layer. The light director layer also includes a light director that receives and directs the illumination light to the light input coupler as shaped light. The light director is configured to tilt the illumination light to give the shaped light a tilt angle with respect to the light input coupler.

Coupling light source to photonic integrated circuit

Techniques disclosed herein relate generally to eye-tracking in near-eye display systems. One example of an eye illuminator for eye-tracking includes a substrate transparent to visible light, an array of light sources immersed in the substrate and configured to emit infrared light, and a holographic optical element conformally coupled to a surface of the substrate and encapsulated by an encapsulation layer. The holographic optical element is configured to transmit the visible light and diffract the infrared light emitted by the array of light sources to the eye of a user for eye-tracking.

Holographic optical elements for eye-tracking illumination

An example device may include a light source, an optical element, and, optionally, an encapsulant layer. A light beam generated by the light source may be received by the optical element and redirected towards an illumination target, such as an eye of a user. The optical element may include a material, for example, with a refractive index of at least approximately 2 at a wavelength of the light beam. The light source may be a semiconductor light source, such as a light-emitting diode or a laser. The optical element may be supported by an emissive surface of the light source. Refraction at an exit surface of the optical element, and/or within a metamaterial layer, may advantageously modify the beam properties, for example, in relation to illuminating a target. In some examples, the light source and optical element may be integrated into a monolithic light source module.

Optical elements for beam-shaping and illumination

An optical assembly includes an optically transparent substrate and a first lens removably coupled with the optically transparent substrate by one or more adhesive layers. The one or more adhesive layers are positioned between the optically transparent substrate and the first lens. Also disclosed are an eye-tracker and a display device, each of which includes the optical assembly.

Head-mounted display devices with removable prescription lenses

A plurality of light sources such as vertical-cavity surface-emitting lasers (VCSELs) are configured to emit non-visible light through emission apertures. Optics are formed over the emission apertures of the plurality of light sources. The optics may provide different tilt angles or divergence angles to the non-visible light emitted by the light sources in the plurality of light sources.

Wafer level optic and zoned wafer

Growing community of inventors

Kenmore, WA, United States of America

Karol Constantine Hatzilias