Patents by Inventor Scott McEldowney

Scott McEldowney 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: 10228561
    Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 12, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Steve Robbins, Scott McEldowney, Xinye Lou, David Nister, Drew Steedly, Quentin Simon Charles Miller, David D Bohn, James Peele Terrell, Jr., Andrew C. Goris, Nathan Ackerman
  • Patent number: 9759913
    Abstract: A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: September 12, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Pasi Saarikko, Xinye Lou, Scott McEldowney, Steven Robbins
  • Patent number: 9625723
    Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: April 18, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Xinye Lou, Scott McEldowney, Steve Robbins
  • Patent number: 9557574
    Abstract: A depth image capture device uses a circular polarization structure positioned at the output of an illumination radiation source, such as a diode laser. A linear polarization element receives the collimated illumination radiation and provides polarized radiation to a quarter wave plate. Radiation exits the quarter wave plate as circularly polarized radiation and is provided to a diffractive optical element outputting a pattern to illuminate a target. A detector receives a reflection of the output pattern from the target.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: January 31, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Scott McEldowney
  • Publication number: 20160370583
    Abstract: A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Pasi Saarikko, Xinye Lou, Scott McEldowney, Steven Robbins
  • Patent number: 9459451
    Abstract: A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: October 4, 2016
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Pasi Saarikko, Xinye Lou, Scott McEldowney, Steven Robbins, Tapani Levola
  • Patent number: 9291449
    Abstract: Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 22, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Scott McEldowney, Dawson Yee
  • Publication number: 20160041390
    Abstract: The technology provides decoupling an aspheric optical element from a birdbath optical element in a near-eye display (NED) device. One or more aspheric lens are used with a spherical birdbath reflective mirror in a projection light engine of a NED device. A projection light engine provides image light (or other information), by way of the spherical birdbath reflective mirror and at least one aspheric lens, to a near-eye display of the NED device. The spherical birdbath reflective mirror collimates and reflects the image light to an exit pupil external to the projection light engine. Decoupling the aspheric optical element from the spherical birdbath reflective mirror may enable high modulation transfer function (MTF) and improved manufacturability of the projection light engine. The NED device having aspheric optical elements decoupled from a birdbath optical element may be positioned by a support structure in a head-mounted display (HMD) or head-up display (HUD).
    Type: Application
    Filed: August 7, 2014
    Publication date: February 11, 2016
    Inventors: Yarn Chee Poon, Joshua A Hudman, R Andrew Wall, Scott McEldowney, Steven John Robbins
  • Publication number: 20150185475
    Abstract: A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 2, 2015
    Inventors: Pasi Saarikko, Xinye Lou, Scott McEldowney, Steven Robbins, Tapani Levola
  • Publication number: 20140375790
    Abstract: Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Steve Robbins, Scott McEldowney, Xinye Lou, David Nister, Drew Steedly, Quentin Simon Charles Miller, David D. Bohn, James Peele Terrell, JR., Andrew C. Goris, Nathan Ackerman
  • Publication number: 20140375789
    Abstract: Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Xinye Lou, Scott McEldowney, Steve Robbins
  • Publication number: 20140291520
    Abstract: A dual-mode includes a light source configured to project a structured illumination from which visible light can be filtered. The dual-mode imager also includes a detector configured to capture both the structured illumination and visible light from the scene. A temporal or spatial filter is used to selectively block visible light from one or more portions of the detector while passing the structured illumination to the one or more portions of the detector.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 2, 2014
    Applicant: Microsoft Corporation
    Inventors: Scott McEldowney, Edward Giaimo
  • Publication number: 20140160493
    Abstract: Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package.
    Type: Application
    Filed: November 25, 2013
    Publication date: June 12, 2014
    Applicant: MICROSOFT CORPORATION
    Inventors: Scott McEldowney, Dawson Yee
  • Patent number: 8723118
    Abstract: A dual-mode includes a light source configured to project a structured illumination from which visible light can be filtered. The dual-mode imager also includes a detector configured to capture both the structured illumination and visible light from the scene. A temporal or spatial filter is used to selectively block visible light from one or more portions of the detector while passing the structured illumination to the one or more portions of the detector.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: May 13, 2014
    Assignee: Microsoft Corporation
    Inventors: Scott McEldowney, Edward Giaimo
  • Patent number: 8704763
    Abstract: Embodiments related to the enhancement of contrast in an image pattern in a structured light depth sensor are disclosed. For example, one disclosed embodiment provides, in a structured light depth sensor system comprising a structured light depth sensor, a method comprising projecting a light pattern onto an object, detecting via an image sensor an image of the light pattern as reflected from the object, increasing a contrast of the light pattern relative to ambient light present in the image of the light pattern as reflected from the object to form a contrast-enhanced image of the light pattern as reflected from the object, and based upon a motion of the object as detected via the contrast-enhanced image of the light pattern, controlling an application that is providing output to a display.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 22, 2014
    Assignee: Microsoft Corporation
    Inventor: Scott McEldowney
  • Patent number: 8670029
    Abstract: A depth camera illuminator with a superluminescent light-emitting diode (SLED) in a motion tracking system. One or more SLEDs have a sufficient power, such as 75-200 milliwatts, to extend in a field of view in an area such as a room in a home. To correct for chromatic aberration which would otherwise exist due to the wider range of wavelengths which are emitted by an SLED compared to a laser, an achromatic diffractive optical element is used to disperse the light over the field of view. The achromatic diffractive optical element can have a stepped multi-level profile with three or more levels, or a continuous profile. Based on a tracked movement of a human target, an input is provided to an application in a motion tracking system, and the application performs a corresponding action such as updating a position of an on-screen avatar.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: March 11, 2014
    Assignee: Microsoft Corporation
    Inventor: Scott McEldowney
  • Patent number: 8654152
    Abstract: A system and method are disclosed for selectively focusing on certain areas of interest within an imaged scene to gain more image detail within those areas. In general, the present system identifies areas of interest from received image data, which may for example be detected areas of movement within the scene. The system then focuses on those areas by providing more detail in the area of interest. This may be accomplished by a number of methods, including zooming in on the image, increasing pixel density of the image and increasing the amount of light incident on the object in the image.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 18, 2014
    Assignee: Microsoft Corporation
    Inventors: Scott McEldowney, John A. Tardif, John Clavin, David Cohen, Giora Yahav
  • Patent number: 8592739
    Abstract: Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: November 26, 2013
    Assignee: Microsoft Corporation
    Inventors: Scott McEldowney, Dawson Yee
  • Patent number: 8558873
    Abstract: A 3-D depth camera system, such as in a motion capture system, tracks an object such as a human in a field of view using an illuminator, where the field of view is illuminated using multiple diffracted beams. An image sensing component obtains an image of the object using a phase mask according to a double-helix point spread function, and determines a depth of each portion of the image based on a relative rotation of dots of light of the double-helix point spread function. In another aspect, dual image sensors are used to obtain a reference image and a phase-encoded image. A relative rotation of features in the images can be correlated with a depth. Depth information can be obtained using an optical transfer function of a point spread function of the reference image.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 15, 2013
    Assignee: Microsoft Corporation
    Inventor: Scott McEldowney
  • Patent number: 8373810
    Abstract: A micro-array of optical vortex retarders is provided by forming an alignment layer having a plurality of discrete alignment patches with different orientations. A layer of birefringent material, including one of a liquid crystal and a liquid crystal polymer precursor material, is provided adjacent to the alignment layer. The aligning orientation and position of each discrete alignment patch in the plurality of discrete alignment patches is selected to induce the layer of birefringent material to form at least one optical vortex retarder adjacent to a substantially non-oriented region of the alignment layer.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: February 12, 2013
    Assignee: JDS Uniphase Corporation
    Inventors: David M. Shemo, Scott McEldowney