Patents by Inventor Karol Constantine Hatzilias

Karol Constantine Hatzilias has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11108977
    Abstract: An eye is illuminated with a first non-visible light wavelength and a second non-visible light wavelength. A first ocular image is captured from first reflected light having the first non-visible light wavelength and a second ocular image is captured from second reflected light having the second non-visible light wavelength.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 31, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Robin Sharma, Andrew John Ouderkirk, Qi Zhang, Christopher Yuan-Ting Liao, Karol Constantine Hatzilias
  • Publication number: 20210266474
    Abstract: An eye is illuminated with a first non-visible light wavelength and a second non-visible light wavelength. A first ocular image is captured from first reflected light having the first non-visible light wavelength and a second ocular image is captured from second reflected light having the second non-visible light wavelength.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 26, 2021
    Inventors: Robin Sharma, Andrew John Ouderkirk, Qi Zhang, Christopher Yuan-Ting Liao, Karol Constantine Hatzilias
  • Publication number: 20210263342
    Abstract: 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.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 26, 2021
    Inventors: Andrew John OUDERKIRK, Robin SHARMA, Karol Constantine HATZILIAS, Sheng YE, Sebastian SZTUK, Kirk Erik BURGESS, Javier San Agustin LOPEZ, Neeraj CHOUBEY, Bo Asp ANDERSEN, Kurt JENKINS
  • Publication number: 20210132384
    Abstract: A near-eye optical element includes light sources arranged with an illumination layer. The light sources are angled to direct light from the light sources to illuminate an ocular region.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 6, 2021
    Inventors: Christopher Yuan-Ting Liao, Qi Zhang, Kurt Allen Jenkins, Karol Constantine Hatzilias, Robin Sharma, Alexander Sohn, Silvio Grespan, Gangok Lee
  • Publication number: 20210124167
    Abstract: A near-eye optic includes a substrate having a clear aperture for propagating light. An inconspicuous electrical circuit is supported by the substrate in the clear aperture of the substrate. The inconspicuous electrical circuit includes a plurality of inconspicuous conductive traces disposed in an inconspicuous pattern and electrically coupled to a plurality of inconspicuous electrical components. The inconspicuous pattern may include e.g. an asymmetric pattern, an aperiodic pattern, a pseudo-random pattern, a meandering pattern, a periodic pattern modulated with pseudo-random perturbations, or a non-rectangular pattern modulated with pseudo-random perturbations.
    Type: Application
    Filed: January 8, 2021
    Publication date: April 29, 2021
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Christopher Yuan Ting Liao, Andrew Ouderkirk
  • Patent number: 10983591
    Abstract: The disclosed computer-implemented method may include identifying a region within a user's eye gaze and calculating a ranking for the identified region within the user's eye gaze. The ranking may indicate the user's level of interest in the identified region. The method may then determine how the identified region is to be presented according to the calculated ranking and present the identified region in the determined manner according to the calculated ranking. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 20, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew John Ouderkirk, Neeraj Choubey, Andre Golard, Bo Asp Andersen, Immo Andreas Schuetz, Karol Constantine Hatzilias, Kelly Ingham, Martin Henrik Tall, Sharvil Shailesh Talati, Robert Dale Cavin, Thomas Scott Murdison
  • Publication number: 20210098962
    Abstract: 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.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 1, 2021
    Inventors: Karol Constantine HATZILIAS, Christopher Yuan Ting LIAO, Robin SHARMA
  • Publication number: 20210083455
    Abstract: A vertical-cavity surface-emitting laser (VCSEL) includes a semiconductor substrate, a first reflector, a second reflector, a first electrical contact, a second electrical contact, and a through-hole via. The first reflector is disposed on a first side of the semiconductor substrate and the second reflector is disposed between the first reflector and an emission side of the VCSEL. The first and second electrical contacts are disposed on a second side of the semiconductor substrate, opposite the first side, for mounting the VCSEL to a transparent substrate. The through-hole via electrically connects the second electrical contact to the second reflector.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: KAROL CONSTANTINE HATZILIAS, CHRISTOPHER YUAN TING LIAO, ROBIN SHARMA, GREGORY OLEGOVIC ANDREEV, PAUL ARMEN TCHERTCHIAN, ANDREW JOHN OUDERKIRK
  • Patent number: 10948729
    Abstract: Aspects of an illumination layer of a near-eye optical element for a head mounted display (HMD) are provided herein. The illumination layer includes a plurality of in-field light sources and a keep-out zone. The in-field light sources are configured to emit infrared light to illuminate an eye of a user of the HMD for imaging of the eye by an eye-tracking camera. The keep-out zone includes a center that is to be aligned with a center of the eye when the eye is in a centered orientation, where the in-field light sources are arranged within the illumination layer outside of the keep-out zone.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: March 16, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Andrew John Ouderkirk, Qi Zhang, Christopher Yuan-Ting Liao
  • Patent number: 10942349
    Abstract: An illumination assembly includes a transparent substrate and a plurality of micro devices. The transparent substrate includes a first surface and a second surface opposite the first surface. The first surface includes a viewing region through which light passes prior to reaching an eyebox. The plurality of micro devices are coupled to respective conductive pathways that are affixed to the first surface. The plurality of micro devices including at least one micro device that is positioned within the viewing region. In some embodiments, the conductive pathways are arranged in a pseudo random manner. In some instances, the viewing region is composed of a circuity free region that is circumscribed by an outer region, and the plurality of micro devices are coupled to respective conductive pathways that are affixed to the first surface in the outer region.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 9, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew John Ouderkirk, Karol Constantine Hatzilias
  • Publication number: 20210041692
    Abstract: The disclosure includes optical systems and near-eye optical elements configured to suppress stray infrared light. Infrared illuminators illuminator an eyebox area with narrow-band infrared illumination light for eye-tracking. A combiner layer receives reflected infrared light reflected of an eye of the user and directs the reflected infrared light to a camera configured to capture eye-tracking images of an eye of a user. An anti-reflection (AR) coating may be disposed on a base curvature to reduce Fresnel reflections that generate stray light. A ghost suppression component may be paired with the infrared illuminators to reduce stray light becoming incident on the camera.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 11, 2021
    Inventors: QI Zhang, ROBIN SHARMA, ANDREW JOHN OUDERKIRK, Karol Constantine Hatzilias, CHRISTOPHER YUAN-TING LIAO, Gregory Olegovic Andreev
  • Patent number: 10914945
    Abstract: A near-eye optic includes a substrate having a clear aperture for propagating light. An inconspicuous electrical circuit is supported by the substrate in the clear aperture of the substrate. The inconspicuous electrical circuit includes a plurality of inconspicuous conductive traces disposed in an inconspicuous pattern and electrically coupled to a plurality of inconspicuous electrical components. The inconspicuous pattern may include e.g. an asymmetric pattern, an aperiodic pattern, a pseudo-random pattern, a meandering pattern, a periodic pattern modulated with pseudo-random perturbations, or a non-rectangular pattern modulated with pseudo-random perturbations.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 9, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Christopher Yuan Ting Liao, Andrew Ouderkirk
  • Patent number: 10909405
    Abstract: Systems and methods for virtual interest segmentation may include (1) performing a semantic segmentation of an image of a user's environment, captured by an artificial reality (AR) device being worn by the user, to identify objects within the user's environment, (2) in addition to performing the semantic segmentation, performing an interest segmentation of the image to determine a personal interest that the user may have in a particular object identified via the semantic segmentation, (3) creating virtual content relating to the particular object based on the user's personal interest in the particular object, and (4) displaying the virtual content within a display element of the AR device. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 2, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andre Golard, Bo Asp Andersen, Immo Andreas Schuetz, Karol Constantine Hatzilias, Kelly Ingham, Martin Henrik Tall, Neeraj Choubey, Sharvil Shailesh Talati, Robert Dale Cavin, Thomas Scott Murdison
  • Patent number: 10884241
    Abstract: An optical element for a head mounted display (HMD) includes an illumination layer, an optical combiner, and an optically transparent layer. The illumination layer is configured to emit infrared light towards an eyeward side of the optical element. The optical combiner is configured to receive reflected infrared light that is reflected by an eye of a user and to direct the reflected infrared light towards an infrared camera. The optically transparent layer is disposed between the illumination layer and the eyeward side of the optical element. The optical element may further include one or both of a confinement layer and an infrared extractor. The confinement layer is disposed on a surface of the optically transparent layer to induce waveguiding of confined infrared light propagating within the optically transparent layer. The infrared extractor is disposed on a side-edge of the optically transparent layer to absorb or frustrate the confined infrared light.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 5, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Qi Zhang, Gregory Olegovic Andreev, Christopher Yuan-Ting Liao, Andrew John Ouderkirk
  • Patent number: 10886702
    Abstract: A vertical-cavity surface-emitting laser for near-field illumination of an eye includes a semiconductor substrate, a first reflector, a mesa region, a first electrical contact, and a second electrical contact. The first reflector is disposed on a first side of the semiconductor substrate and the mesa region is disposed on the first reflector. The mesa region includes a second reflector and an active region, where the mesa region is configured to generate a diverging infrared beam. The first electrical contact is disposed on a second side of the semiconductor substrate, opposite the first side, for electrically coupling to the first reflector. The second electrical contact is also disposed on the second side of the semiconductor substrate for electrically coupling to the second reflector.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 5, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Karol Constantine Hatzilias, Christopher Yuan-Ting Liao, Robin Sharma, Gregory Olegovic Andreev, Paul Armen Tchertchian, Andrew John Ouderkirk
  • Patent number: 10881287
    Abstract: The disclosed embodiments are generally directed to optical systems. The optical systems may include a proximal lens that may transmit light toward an eye of a user. The optical systems may also include a distal lens that may, in combination with the proximal lens, correct for at least a portion of a refractive error of the eye of the user. The optical systems may further include a selective transmission interface. The selective transmission interface may couple the proximal lens to the distal lens, transmits light having a selected property, and does not transmit light that does not have the selected property. The optical system can also include an accommodative lens, such as a liquid lens. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 5, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Andrew John Ouderkirk, Karol Constantine Hatzilias, Katherine Marie Smyth, Robin Sharma
  • Patent number: 10877268
    Abstract: A method for the active control of in-field light sources of a head mounted display (HMD) includes receiving an image of an eye of a user of the HMD, where the image is captured by an eye-tracking camera in response to infrared light emitted by a plurality of in-field light sources. The method also includes selectively disabling at least one of the in-field light sources based on information from the image of the eye.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: December 29, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Andrew John Ouderkirk, Qi Zhang, Christopher Yuan-Ting Liao
  • Publication number: 20200386989
    Abstract: An optical element for a head mounted display (HMD) includes an illumination layer, an optical combiner, and an optically transparent layer. The illumination layer is configured to emit infrared light towards an eyeward side of the optical element. The optical combiner is configured to receive reflected infrared light that is reflected by an eye of a user and to direct the reflected infrared light towards an infrared camera. The optically transparent layer is disposed between the illumination layer and the eyeward side of the optical element. The optical element may further include one or both of a confinement layer and an infrared extractor. The confinement layer is disposed on a surface of the optically transparent layer to induce waveguiding of confined infrared light propagating within the optically transparent layer. The infrared extractor is disposed on a side-edge of the optically transparent layer to absorb or frustrate the confined infrared light.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 10, 2020
    Inventors: Karol Constantine Hatzilias, Robin Sharma, Qi Zhang, Gregory Olegovic Andreev, Christopher Yuan-Ting Liao, Andrew John Ouderkirk
  • Patent number: 10852817
    Abstract: Techniques for eye-tracking in a near-eye display system are disclosed. One example of a near-eye display system includes a waveguide-based display substrate transparent to visible light and configured to be placed in front of a user's eye. The waveguide-based display substrate includes a first light deflector configured to direct a first portion of invisible light reflected by the user's eye to a camera to form a first image of the user's eye in a first area of an image frame, and a second light deflector configured to direct a second portion of the invisible light reflected by the user's eye to the camera to form a second image of the user's eye in a second area of the image frame.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 1, 2020
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Andrew John Ouderkirk, Robert Dale Cavin, Alexander Jobe Fix, Ying Geng, Elias Daniel Guestrin, Karol Constantine Hatzilias, Robin Sharma, Yusufu Njoni Bamaxam Sulai
  • Patent number: 10852820
    Abstract: Systems and methods for enabling gaze-based virtual content control may include (1) displaying an artificial scene with one or more virtual elements to a user wearing a head-mounted display system, (2) identifying the user's eye gaze based on gazing data collected by one or more sensors in the head-mounted display system, (3) determining that the user's eye gaze is focused on a specific virtual element, and (4) in response to determining that the user's eye gaze is focused on the specific virtual element, increasing the specific virtual element's visibility to the user. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 1, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Andre Golard, Bo Asp Andersen, Immo Andreas Schuetz, Karol Constantine Hatzilias, Kelly Ingham, Martin Henrik Tall, Neeraj Choubey, Sharvil Shailesh Talati, Robert Dale Cavin, Thomas Scott Murdison