Patents by Inventor Onur Can Akkaya

Onur Can Akkaya 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: 11570342
    Abstract: An imaging method includes acquiring one or more passive light images of a scene. A region of interest in the scene is identified based on the one or more passive light images. One or more illumination zones of a plurality of illumination zones that collectively cover the region of interest is determined. Each illumination zone is sized according to active illumination emitted from a steerable illumination source. For a determined illumination zone of the one or more illumination zones, the illumination zone is individually illuminated with the active illumination from the steerable illumination source. For a pixel of a sensor array that maps to the illumination zone, a depth value of an object locus in the scene reflecting the active illumination back to the pixel is determined.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: January 31, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Cyrus Soli Bamji, Arrigo Benedetti
  • Publication number: 20220382064
    Abstract: A head-mounted display device wearable by a user and supporting a mixed-reality experience includes a see-through display system through which the user can view a physical world and on which virtual images are renderable. At least one light source is configured to emit near infrared (IR) light that illuminates an eye of the user of the near-eye mixed reality display device. An imaging sensor is configured to capture reflections of the near IR light reflected from the eye of the user. A metalens is configured to receive the reflections of the IR light reflected from the eye of the user and direct the reflections onto the image sensor.
    Type: Application
    Filed: June 1, 2021
    Publication date: December 1, 2022
    Inventors: David C. Rohn, Onur Can Akkaya, James Peele Terrell, Jr.
  • Patent number: 11454843
    Abstract: One example provides an optical device, comprising a light source configured to output unpolarized light, a polarizing beam splitter configured to split the unpolarized light into light of a first polarization state and light of a second polarization state and a polarization volume grating configured to receive the light of the first polarization state and the light of the second polarization state, and transmit the light of the first polarization state without changing the light of the first polarization state to a different polarization state, and convert the light of the second polarization state to the first polarization state, thereby forming polarized output light.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: September 27, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Onur Can Akkaya
  • Publication number: 20220159217
    Abstract: A camera system. The camera system includes a sensor array; an infrared (IR) illumination system configured to emit active IR light in an IR light sub-band; a spectral illumination system configured to emit active spectral light in a spectral light sub-band; one or more logic machines; and one or more storage machines. The storage machines hold instructions executable by the one or more logic machines to address the sensor array to acquire an ambient image; based on at least the ambient image, activate the IR illumination system and address the sensor array to acquire an actively-IR-illuminated depth image; and based on at least the actively-IR-illuminated depth image, activate the spectral illumination system and address the sensor array to acquire an actively-spectrally-illuminated spectral image.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 19, 2022
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Sergio ORTIZ EGEA, Riaz Imdad ALI, Michael Scott FENTON, Onur Can AKKAYA
  • Patent number: 11245875
    Abstract: A camera system is configured to automatically monitor an area. Depth image(s) of the area are acquired based on active IR light emitted by the camera system and reflected from the area to a sensor array of the camera system. The depth image(s) are computer analyzed to identify a human subject. For each spectral illuminator of the camera system, spectral light image(s) of the area are acquired based on active spectral light in the spectral light sub-band of the spectral illuminator reflected from the area to the sensor array. The spectral light image(s) for the spectral illuminators are computer analyzed to identify an interaction between the human subject and an object in the area. In response to identifying the interaction between the human subject and the object in the area, an action to be performed for the object in the area is computer issued.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: February 8, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sergio Ortiz Egea, Riaz Imdad Ali, Michael Scott Fenton, Onur Can Akkaya
  • Publication number: 20220011610
    Abstract: One example provides an optical device, comprising a light source configured to output unpolarized light, a polarizing beam splitter configured to split the unpolarized light into light of a first polarization state and light of a second polarization state and a polarization volume grating configured to receive the light of the first polarization state and the light of the second polarization state, and transmit the light of the first polarization state without changing the light of the first polarization state to a different polarization state, and convert the light of the second polarization state to the first polarization state, thereby forming polarized output light.
    Type: Application
    Filed: October 14, 2020
    Publication date: January 13, 2022
    Applicant: Microsoft Technology Licensing, LLC
    Inventor: Onur Can AKKAYA
  • Publication number: 20210258457
    Abstract: An imaging method includes acquiring one or more passive light images of a scene. A region of interest in the scene is identified based on the one or more passive light images. One or more illumination zones of a plurality of illumination zones that collectively cover the region of interest is determined. Each illumination zone is sized according to active illumination emitted from a steerable illumination source. For a determined illumination zone of the one or more illumination zones, the illumination zone is individually illuminated with the active illumination from the steerable illumination source. For a pixel of a sensor array that maps to the illumination zone, a depth value of an object locus in the scene reflecting the active illumination back to the pixel is determined.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 19, 2021
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Onur Can AKKAYA, Cyrus Soli BAMJI, Arrigo BENEDETTI
  • Patent number: 10996169
    Abstract: A camera system includes one or more spectral illuminators, a tunable optical filter, and a sensor array. Active spectral light emitted from the one or more spectral illuminators towards a scene is dynamically tuned to an illumination sub-band selected from a plurality of different illumination sub-bands. Sequentially for each of a plurality of fluorescing light sub-bands different than the selected illumination sub-band, the tunable optical filter is adjusted to block light from being transmitted from the scene to the sensor array in all but a tested fluorescing light sub-band from the plurality of different fluorescing light sub-bands, and the sensor array is addressed to acquire one or more image of the scene in the tested fluorescing light sub-band.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: May 4, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sergio Ortiz Egea, Maria Esther Pace, Onur Can Akkaya, Michael Scott Fenton
  • Patent number: 10982836
    Abstract: A camera includes one or more spectral illuminators, a tunable optical filter optically intermediate the one or more spectral illuminators and a scene, and a sensor array. The one or more spectral illuminators are configured to emit active spectral light. The tunable optical filter is dynamically adjustable to change a selected sub-band of the active spectral light that illuminates the scene. The sensor array includes a plurality of sensors each configured to measure spectral light reflected from the scene in the selected sub-band.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: April 20, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Sergio Ortiz Egea, Cyrus Soli Bamji
  • Patent number: 10972643
    Abstract: An optical filter for a camera is switchable between a reflection state and a transmission state. The optical filter includes a first plurality of liquid crystals configured to dynamically form cholesteric phase structures in the reflection state that block right-handed circularly polarized light in a spectral light sub-band and transmit light outside of the spectral light sub-band. The first plurality of liquid crystals dynamically forms a nematic phase arrangement in the transmission state that transmits light in the spectral light sub-band. The optical filter further includes a second plurality of liquid crystals configured to dynamically form cholesteric phase structures in the reflection state that block left-handed circularly polarized light in the spectral light sub-band and transmit light outside of the spectral light sub-band. The second plurality of liquid crystals dynamically form a nematic phase arrangement in the transmission state that transmits light in the spectral light sub-band.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 6, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Cyrus Soli Bamji
  • Patent number: 10931894
    Abstract: A camera includes one or more spectral illuminators, a tunable optical filter optically intermediate the one or more spectral illuminators and a scene, and a sensor array. The one or more spectral illuminators are configured to emit active spectral light. The tunable optical filter is dynamically adjustable to change a selected sub-band of the active spectral light that illuminates the scene. The sensor array includes a plurality of sensors each configured to measure spectral light reflected from the scene in the selected sub-band.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 23, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Sergio Ortiz Egea, Cyrus Soli Bamji
  • Patent number: 10917626
    Abstract: An active illumination range camera operable to determine distances to features in a scene, and comprising an illumination system and imaging system simultaneously controllable to provide a FOI and a FOV that coincide at, and are substantially coextensive with, a region of interest (ROI) in a portion of the scene and track the ROI as it moves.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: February 9, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Arrigo Benedetti, Cyrus Bamji
  • Patent number: 10892295
    Abstract: An imaging sensor array comprises an epitaxial germanium layer disposed on a silicon layer, and an electrically biased photoelectron collector arranged on the silicon layer, on a side opposite the germanium layer.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: January 12, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Satyadev Hulikal Nagaraja, Onur Can Akkaya, Cyrus Soli Bamji
  • Patent number: 10872430
    Abstract: An active illumination range camera comprising illumination and imaging systems that is operable to provide a range image of a scene in the imaging system's field of view (FOV) by partitioning the range camera FOV into sub-FOVs, and controlling the illumination and imaging systems to sequentially illuminate and image portions of the scene located in the respective sub-FOVs.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 22, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Cyrus Soli Bamji
  • Publication number: 20200301239
    Abstract: A near-eye display system comprises a display projector configured to emit display light, an optical waveguide, a fixed-focus lens, and a variable-focus lens of variable optical power. The optical waveguide is configured to receive the display light and to release the display light toward an observer. The fixed-focus lens is arranged to adjust a vergence of the display light released from the optical waveguide. The variable-focus lens is arranged in series with the fixed-focus lens and configured to vary, responsive to a focusing bias, the vergence of the display light released from the optical waveguide.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 24, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Onur Can AKKAYA, Bernard Charles KRESS, Sergio ORTIZ EGEA, Alfonsus D. LUNARDHI
  • Publication number: 20200271583
    Abstract: A camera system includes one or more spectral illuminators, a tunable optical filter, and a sensor array. Active spectral light emitted from the one or more spectral illuminators towards a scene is dynamically tuned to an illumination sub-band selected from a plurality of different illumination sub-bands. Sequentially for each of a plurality of fluorescing light sub-bands different than the selected illumination sub-band, the tunable optical filter is adjusted to block light from being transmitted from the scene to the sensor array in all but a tested fluorescing light sub-band from the plurality of different fluorescing light sub-bands, and the sensor array is addressed to acquire one or more image of the scene in the tested fluorescing light sub-band.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Sergio ORTIZ EGEA, Maria Esther PACE, Onur Can AKKAYA, Michael Scott FENTON
  • Patent number: 10747309
    Abstract: A system including reconfigurable optics for switching between different near-to-eye display modes includes a waveguide combiner and multiple focus-tunable lenses including an eye-side focus-tunable lens and a world-side focus-tunable lens positioned on opposite sides of the waveguide combiner. The waveguide combiner is positioned to receive light from an optical projection source and to direct the light through the eye-side focus-tunable lens, and the system further includes a microdisplay positioned to transmit light along an optical path sequentially through the world-side focus-tunable lens and the eye-side focus-tunable lens.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 18, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Onur Can Akkaya, Bernard C. Kress
  • Patent number: 10742912
    Abstract: Pixel arrangements in time-of-flight sensors are presented that include sensing elements that establish charges related to incident light, charge storage elements that accumulate integrated charges transferred from the sensing elements, and diffusion nodes configured to establish measurement voltages representative of the integrated charges that are dumped from the charge storage elements. The pixel arrangement includes analog domain output circuitry comprising a measurement capacitance element that stores the measurement voltage, and a reset capacitance element that stores a reset voltage established at the diffusion node during a reset phase performed prior to a measurement phase. The analog domain output circuitry subtracts the stored reset voltage from the stored measurement voltage for processing into a pixel output voltage that at least partially reduces readout voltage uncertainty of the pixel arrangement.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: August 11, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Cyrus Soli Bamji, Onur Can Akkaya, Tamer Elkhatib, Swati Mehta, Satyadev H. Nagaraja, Vijay Rajasekaran
  • Patent number: 10718942
    Abstract: An eye tracking system for a NED device includes sensors that are directed toward and angularly offset from a user's eyes in a manner that causes circular features (e.g., irises and/or pupils) of the user's eyes to appear elliptical within sensor planes that correspond to the individual sensors. The eye tracking system determines parameters associated with detected ellipses and then uses these parameters to generate 3D propagations from the detected ellipses back to the user's eyes. By analyzing these 3D propagations with respect to ocular rotation models that represent how the pupils and iris rotate about the center of the eye, the eye tracking system determines pupil orientation parameters that define physical characteristics of the user's eyes. The pupil orientation parameters may then be used to determine interpupillary distance and/or vergence of the user's visual axis that extend from the user's fovea.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: July 21, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sergio Ortiz Egea, Venkata Satya Reghavendra Bulusu, Bernard C. Kress, Alfonsus D. Lunardhi, Onur Can Akkaya
  • Publication number: 20200228753
    Abstract: A camera system is configured to automatically monitor an area. Depth image(s) of the area are acquired based on active IR light emitted by the camera system and reflected from the area to a sensor array of the camera system. The depth image(s) are computer analyzed to identify a human subject. For each spectral illuminator of the camera system, spectral light image(s) of the area are acquired based on active spectral light in the spectral light sub-band of the spectral illuminator reflected from the area to the sensor array. The spectral light image(s) for the spectral illuminators are computer analyzed to identify an interaction between the human subject and an object in the area. In response to identifying the interaction between the human subject and the object in the area, an action to be performed for the object in the area is computer issued.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 16, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Sergio ORTIZ EGEA, Riaz Imdad ALI, Michael Scott FENTON, Onur Can AKKAYA