Patents by Inventor Andreas Georgiou
Andreas Georgiou 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).
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Patent number: 11265534Abstract: The subject disclosure is directed towards controlling the intensity of illumination of a scene or part of a scene, including to conserve illumination power. Quality of depth data in stereo images may be measured with different illumination states; environmental conditions, such as ambient light, natural texture may affect the quality. The illumination intensity may be controllably varied to obtain sufficient quality while conserving power. The control may be directed to one or more regions of interest corresponding to an entire scene or part of a scene.Type: GrantFiled: February 8, 2014Date of Patent: March 1, 2022Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Adam G. Kirk, Christoph Rhemann, Oliver A. Whyte, Shahram Izadi, Sing Bing Kang, Andreas Georgiou
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Patent number: 11262578Abstract: An image forming system includes a spatial light modulator (SLM) including a plurality of pixels. Each pixel is configured to diffract incident light and cause the diffracted light to exit the SLM, where a first diffraction order of light exiting the SLM passes through a first exit pupil and higher diffraction orders of light exiting the SLM pass through additional exit pupils having different positions from the first exit pupil. Control logic operatively coupled to the plurality of pixels is configured to control each pixel to control its modulation of the light incident on the pixel and cause the plurality of pixels to collectively form an image at each exit pupil. A light source is configured to emit incident light toward the SLM. A resampling layer is configured to subsample each pixel electrode with two or more samples per pixel to increase a spacing between each exit pupil.Type: GrantFiled: March 15, 2019Date of Patent: March 1, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Joel Steven Kollin, Andreas Georgiou
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Patent number: 11243399Abstract: This document relates to head mounted display devices. In one example the head mounted display device includes a light engine including an array of individually controllable pixels that can be energized to emit light. The example also includes an optical assembly physically aligned with the light engine and including a set of focusing elements facing toward the light engine and a different set of focusing elements facing away from the light engine.Type: GrantFiled: January 31, 2020Date of Patent: February 8, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Andreas Georgiou, Alfonsus D. Lunardhi, Joel Steven Kollin, Bernard C. Kress, Ishan Chatterjee, Mario Possiwan
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Publication number: 20210239883Abstract: This document relates to head mounted display devices. In one example the head mounted display device includes a light engine including an array of individually controllable pixels that can be energized to emit light. The example also includes an optical assembly physically aligned with the light engine and including a set of focusing elements facing toward the light engine and a different set of focusing elements facing away from the light engine.Type: ApplicationFiled: November 24, 2020Publication date: August 5, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Andreas GEORGIOU, Alfonsus D. LUNARDHI, Joel Steven KOLLIN, Bernard C. KRESS, Ishan CHATTERJEE, Mario POSSIWAN, Charles Thomas HEWITT, Brian K. GUENTER, Maria PACE, Jacob HADNETT-HUNTER
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Publication number: 20210239979Abstract: This document relates to head mounted display devices. In one example the head mounted display device includes a light engine including an array of individually controllable pixels that can be energized to emit light. The example also includes an optical assembly physically aligned with the light engine and including a set of focusing elements facing toward the light engine and a different set of focusing elements facing away from the light engine.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Andreas Georgiou, Alfonsus D. Lunardhi, Joel Steven Kollin, Bernard C. Kress, Ishan Chatterjee, Mario Possiwan
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Publication number: 20210239971Abstract: This document relates to an optical device that uses adaptive optics as part of an optical system. The adaptive optics can be used to correct light rays that correspond to a portion of an eye box based on information received from an eye-tracking unit, and can also correct for aberrations in the optics in the optical device. The adaptive optics include corrective elements that can be modified using modifying elements to correct the angle of light rays, such that rays associated with a specific pupil position and gaze direction of a user's eye can be made parallel and ensure a high quality image is viewed by the user.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Andreas Georgiou, Alfonsus D. Lunardhi, Joel Steven Kollin, Bernard C. Kress, Ishan Chatterjee, Mario Possiwan
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Patent number: 11068052Abstract: A holographic display system includes an eye tracker configured to determine a position of a feature of an eye, a light source configured to output image light, and a digital dynamic hologram. The digital dynamic hologram is configured to receive the image light from the light source. The digital dynamic hologram is further configured to spatially modulate the image light based on a target image to form a reconstructed image in the eye. The reconstructed image includes noise that is non-uniformly distributed across the reconstructed image based on the position of the feature of the eye.Type: GrantFiled: March 15, 2019Date of Patent: July 20, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Andreas Georgiou, Joel Steven Kollin, Charles Thomas Hewitt, Neil Emerton
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Patent number: 11022939Abstract: Examples are disclosed that relate to holographic near-eye display systems. One example provides a near-eye display device, comprising a diverging light source, an image producing dynamic digital hologram panel configured to receive light from the diverging light source and form an image. The near-eye display device also includes and a combiner comprising a holographic optical element positioned to receive light from the dynamic digital hologram panel and to redirect the light toward an eyebox, the holographic optical element being positioned between the eyebox and a view of an external environment to combine a view of the image formed by the dynamic digital hologram panel and the view of the external environment.Type: GrantFiled: January 3, 2017Date of Patent: June 1, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Andrew Maimone, Andreas Georgiou, Joel Steven Kollin
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Patent number: 10928189Abstract: The subject disclosure is directed towards projecting light in a pattern in which the pattern contains components (e.g., spots) having different intensities. The pattern may be based upon a grid of initial points associated with first intensities and points between the initial points with second intensities, and so on. The pattern may be rotated relative to cameras that capture the pattern, with captured images used active depth sensing based upon stereo matching of dots in stereo images.Type: GrantFiled: March 5, 2018Date of Patent: February 23, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Sing Bing Kang, Andreas Georgiou, Richard S. Szeliski
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Patent number: 10890768Abstract: A polarization-based dynamic focuser for a near-eye display includes a first polarizer configured to polarize environmental light incident on the first polarizer, such that environmental light passing through the first polarizer toward a user eye has a first polarity. An image source is positioned between the user eye and the first polarizer. The image source is transparent to the environmental light and is configured to output image display light toward the user eye, at least some of the image display light having a second polarity. A dynamic lens is positioned between the user eye and the image source, and is configured to selectively focus incident light having the second polarity toward the user eye at a controllable virtual distance, where the dynamic lens does not affect incident light having the first polarity.Type: GrantFiled: October 15, 2018Date of Patent: January 12, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Joel Steven Kollin, Bernard Charles Kress, Andreas Georgiou
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Patent number: 10845761Abstract: Examples are disclosed that relate to holographic near-eye display systems. One example provides a near-eye display device, comprising a diverging light source, an image producing dynamic digital hologram panel configured to receive light from the diverging light source and form an image. The near-eye display device also includes and a combiner comprising a holographic optical element positioned to receive light from the dynamic digital hologram panel and to redirect the light toward an eyebox, the holographic optical element being positioned between the eyebox and a view of an external environment to combine a view of the image formed by the dynamic digital hologram panel and the view of the external environment.Type: GrantFiled: March 8, 2017Date of Patent: November 24, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Andrew Maimone, Andreas Georgiou, Joel Steven Kollin
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Patent number: 10838360Abstract: An optical device including a first rigid substrate, a flexible holographic optical element, a transparent flexible material having a variable shear transmission property across an in-plane direction of the flexible holographic optical element, and a second rigid substrate, where the flexible holographic optical element and the transparent flexible material are located between the first and second rigid substrates, where the variable shear transmission property of the transparent flexible material transmits variable amounts of a shear force applied to the first or second rigid substrates across the in-plane direction of the flexible holographic optical element.Type: GrantFiled: October 2, 2017Date of Patent: November 17, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Andreas Georgiou, Adrian Robert Leigh Travis
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Publication number: 20200348518Abstract: A head-mounted, near-eye display device includes a central display and a peripheral display. The central display creates a central image of a first resolution in a central eyebox. The peripheral display creates a peripheral image of a second resolution, lower than the first resolution, in a peripheral eyebox, different than the central eyebox.Type: ApplicationFiled: May 3, 2019Publication date: November 5, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Andreas GEORGIOU, Joel Steven KOLLIN, Bernard Charles KRESS, Alfonsus D. LUNARDHI, Sohaib ABDUL REHMAN, Charles Thomas HEWITT
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Patent number: 10809529Abstract: An optical device comprises a pixel array including one or more pixels. Two or more independently controllable electrodes are electrically coupled to each pixel. A common ground reference electrode is electrically coupled to all pixels of the pixel array. Each pixel includes a plurality of liquid crystal molecules. The liquid crystal molecules may be oriented in a first direction based on a first function of voltages applied by the two or more independently controllable electrodes for the pixel, and oriented in a second direction based on a second function of the voltages applied by the two or more independently controllable electrodes for the pixel. In this way, both phase modulation and polarization modulation may be introduced to light illuminating the pixel array.Type: GrantFiled: June 15, 2017Date of Patent: October 20, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Steven John Robbins, Joel Steven Kollin, Andreas Georgiou, Adrian Robert Leigh Travis
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Publication number: 20200292812Abstract: An image forming system includes a spatial light modulator (SLM) including a plurality of pixels. Each pixel is configured to diffract incident light and cause the diffracted light to exit the SLM, where a first diffraction order of light exiting the SLM passes through a first exit pupil and higher diffraction orders of light exiting the SLM pass through additional exit pupils having different positions from the first exit pupil. Control logic operatively coupled to the plurality of pixels is configured to control each pixel to control its modulation of the light incident on the pixel and cause the plurality of pixels to collectively form an image at each exit pupil. A light source is configured to emit incident light toward the SLM. A resampling layer is configured to subsample each pixel electrode with two or more samples per pixel to increase a spacing between each exit pupil.Type: ApplicationFiled: March 15, 2019Publication date: September 17, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Joel Steven KOLLIN, Andreas GEORGIOU
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Publication number: 20200293108Abstract: A holographic display system includes an eye tracker configured to determine a position of a feature of an eye, a light source configured to output image light, and a digital dynamic hologram. The digital dynamic hologram is configured to receive the image light from the light source. The digital dynamic hologram is further configured to spatially modulate the image light based on a target image to form a reconstructed image in the eye. The reconstructed image includes noise that is non-uniformly distributed across the reconstructed image based on the position of the feature of the eye.Type: ApplicationFiled: March 15, 2019Publication date: September 17, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Andreas GEORGIOU, Joel Steven KOLLIN, Charles Thomas HEWITT, Neil EMERTON
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Patent number: 10768825Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: GrantFiled: November 12, 2019Date of Patent: September 8, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
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Patent number: 10719239Abstract: A data-storage system comprises a head receiver configured to variably receive up to a number M of write heads. The data-storage system also includes an installed number N of write heads arranged in the head receiver, a substrate receiver configured to receive one or more data-storage substrates, and a positioner machine configured to adjust a relative placement of each of the M write heads with respect to at least one of the one or more data-storage substrates.Type: GrantFiled: May 16, 2018Date of Patent: July 21, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Antony Ian Taylor Rowstron, Ioan Alexandru Stefanovici, Aaron William Ogus, Douglas Wayne Phillips, Richard John Black, Austin Nicholas Donnelly, Alexander Lloyd Gaunt, Andreas Georgiou, Ariel Gomez Diaz, Serguei Anatolievitch Legtchenko, Reinhard Sebastian Bernhard Nowozin, Benn Charles Thomsen, Hugh David Paul Williams, David Lara Saucedo, Patrick Neil Anderson, Andromachi Chatzieleftheriou, John Christopher Dainty, James Hilton Clegg, Raluca Andreea Diaconu, Rokas Drevinskas, Mengyang Yang
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Patent number: 10712567Abstract: Examples are disclosed that relate to holographic display systems. One example provides a display system comprising a waveguide, a light source configured to introduce light into the waveguide at a controllable light input angle, and a holographic optical element (HOE) configured to outcouple from the waveguide light received from within the waveguide that meets an angular condition. The display system may further comprise a controller configured to control the light input angle and also to control a corrective component optically downstream of the HOE to correct for aberration of the light by the HOE based upon the light input angle.Type: GrantFiled: June 15, 2017Date of Patent: July 14, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Andreas Georgiou, Andrew Stephen Maimone, Joel Steven Kollin, Adrian Robert Leigh Travis
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Publication number: 20200117006Abstract: A polarization-based dynamic focuser for a near-eye display includes a first polarizer configured to polarize environmental light incident on the first polarizer, such that environmental light passing through the first polarizer toward a user eye has a first polarity. An image source is positioned between the user eye and the first polarizer. The image source is transparent to the environmental light and is configured to output image display light toward the user eye, at least some of the image display light having a second polarity. A dynamic lens is positioned between the user eye and the image source, and is configured to selectively focus incident light having the second polarity toward the user eye at a controllable virtual distance, where the dynamic lens does not affect incident light having the first polarity.Type: ApplicationFiled: October 15, 2018Publication date: April 16, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Joel Steven KOLLIN, Bernard Charles KRESS, Andreas GEORGIOU