Patents by Inventor Yarn Chee Poon

Yarn Chee Poon 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: 10958032
    Abstract: Techniques are provided for increasing a laser light's spectral linewidth while simultaneously improving how a laser is controlled by causing the laser to operate at higher power levels. An illumination energy value for a pixel and an illumination time period for the pixel are both determined. A number of laser pulses that are to be emitted by the laser assembly to illuminate the pixel during the illumination time period is also determined. This number is based on the illumination energy value for the pixel. Then, within the illumination time period and in accordance with the determined number of laser pulses, the pixel is illuminated by causing the laser assembly to emit one or more laser pulses that cause the pixel to be illuminated at the illumination energy value.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: March 23, 2021
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Raymond Kirk Price, Novela Kristim Auparay, Yarn Chee Poon
  • Publication number: 20210006035
    Abstract: A multi-section laser device is configured with a gain section and an integrated photodetector section. The photodetector section, rather than being a separate component, is integrated directly into the body of the laser. The integrated photodetector section absorbs photons generated by the gain section and creates a photocurrent that is proportional to the output of the multi-section laser device. The measured photocurrent is usable to calculate power output of the multi-section laser device and to identify any adjustments that may be needed to be made to the laser in order to achieve desired laser light output.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 7, 2021
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Gambhir Ranjit
  • Publication number: 20200396426
    Abstract: Techniques for improving laser image quality are disclosed herein. An ultra-compact illumination module includes multiple illuminators, photodetectors, and color filters. The illuminators each emit a different spectrum of light. Because of the compact nature of the module and the positioning of the illuminators relative to one another, the different spectrums of light overlap one another prior to being detected by the photodetectors. Each of the photodetectors is associated with a corresponding one of the illuminators, and each of the color filters is associated with a corresponding one of the photodetectors. Each color filter is positioned in-between its corresponding illuminator and photodetector and passes a particular spectrum of light while filtering out other spectrums of light. Consequently, the photodetectors each receive spectrally filtered light having passed through at least one of the color filters. The power output of the illuminators can also be corrected based on output from the photodetectors.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 17, 2020
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Fei Chen
  • Patent number: 10838489
    Abstract: An improved eye tracking illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's eye via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's eye. The photodetectors include an IR detector configured to detect reflected IR light off of the user's eye in order to perform eye tracking.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 17, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Patent number: 10832052
    Abstract: An improved iris recognition illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's iris via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's iris. The photodetectors include an IR detector configured to detect reflected IR light off of the user's iris in order to perform iris recognition.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 10, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Patent number: 10831029
    Abstract: A display system includes a first light source, a second light source, at least one movable mirror, and an attenuator. The first light source is configured to provide a first light in a first optical path. The second light source is configured to provide a second light in a second optical path. A portion of the second optical path overlaps the first optical path in an overlapping portion. The attenuator is positioned in at least the first optical path and configured to attenuate at least the first light. The movable mirror is movable to deflect the overlapping portion.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: November 10, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ruipeng Sun, Yarn Chee Poon, Chuan Pu, Richard Allen James, Joshua Owen Miller
  • Publication number: 20200285050
    Abstract: An illumination system having a reduced z-dimensional profile, which is achieved by reflecting light out of plane relative to a light source that generated the light, is disclosed herein. This illumination system includes an IR illumination device, a collimating optic, a turning optic, and a waveguide. The turning optic is specially configured to receive IR light from the IR illumination device and to reflect the IR light out of plane relative to the emission orientation of the IR illumination device. The reflected IR light is reflected towards the collimating optic. The waveguide is positioned in a fixed position relative to the collimating optic and includes an input port or grating to receive the collimated IR light. By reflecting light out of the plane, the size of the illumination system can be beneficially reduced in the z-direction.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 10, 2020
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Publication number: 20200285848
    Abstract: An improved iris recognition illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's iris via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's iris. The photodetectors include an IR detector configured to detect reflected IR light off of the user's iris in order to perform iris recognition.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 10, 2020
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Publication number: 20200285307
    Abstract: An improved eye tracking illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's eye via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's eye. The photodetectors include an IR detector configured to detect reflected IR light off of the user's eye in order to perform eye tracking.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 10, 2020
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Publication number: 20200280158
    Abstract: Techniques are provided for increasing a laser light's spectral linewidth while simultaneously improving how a laser is controlled by causing the laser to operate at higher power levels. An illumination energy value for a pixel and an illumination time period for the pixel are both determined. A number of laser pulses that are to be emitted by the laser assembly to illuminate the pixel during the illumination time period is also determined. This number is based on the illumination energy value for the pixel. Then, within the illumination time period and in accordance with the determined number of laser pulses, the pixel is illuminated by causing the laser assembly to emit one or more laser pulses that cause the pixel to be illuminated at the illumination energy value.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 3, 2020
    Inventors: Raymond Kirk Price, Novela Kristim Auparay, Yarn Chee Poon
  • Patent number: 10747313
    Abstract: An improved eye tracking illumination system is disclosed. The system includes (i) an RGB laser device that is associated with a first collimating optic and (ii) an IR illumination device that is associated with a second collimating optic. The system also includes a DMA that has a MEMS mirror system. The DMA optically combines IR light and RGB light to generate combined light. The combined light is then directed towards a user's eye via a transport medium (e.g., a waveguide). One or more photodetector(s) are positioned to capture reflected light that is reflected off of the user's eye. The photodetectors include an IR detector configured to detect reflected IR light off of the user's eye in order to perform eye tracking.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 18, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Raymond Kirk Price, Yarn Chee Poon, Rachel N. Ulanch, Rashelle Kay Yee
  • Patent number: 10746994
    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: Grant
    Filed: August 7, 2014
    Date of Patent: August 18, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yarn Chee Poon, Joshua A Hudman, R Andrew Wall, Scott McEldowney, Steven John Robbins
  • Publication number: 20200166766
    Abstract: Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, hybrid polarizing beam splitters and systems with such beam splitters that incorporate polymeric reflective polarizers aligned with MacNeille or wire grid reflective polarizers are described.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Philip E. Watson, Yarn Chee Poon, Andrew J. Ouderkirk
  • Patent number: 10663734
    Abstract: A wearable image display system includes a headpiece, a first and a second light engine, and a first and a second optical component. The first and second light engines generate a first and a second set of beams respectively, each beam substantially collimated so that the first and second set form a first and a second virtual image respectively. Each optical component is located to project an image onto a first and a second eye of a wearer respectively. The first and second sets of beams are directed to incoupling structures of the first and second optical components respectively. Exit structures of the first and second optical components guide the first and second sets of beams onto the first and second eyes respectively. The optical components are located between the light engines and the eyes. Both of the light engines are mounted to a central portion of the headpiece.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 26, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tapani Levola, Pasi Saarikko, Steven John Robbins, Yarn Chee Poon, Lena Adele Wolfe, Erica Lee Towle
  • Patent number: 10620430
    Abstract: Systems and methods are utilized for performing geometric multiplexing in MEMS display systems that utilize RGB laser diodes and MEMS mirrors to compensate for angular separation between the RGB light that results from passing the RGB light emitted from the RGB laser diodes through a single collimating lens shared by the RGB laser diodes, as opposed to utilizing a separate collimating lens for each corresponding laser diode. Spatial offsets between the RGB light at the target display, resulting from the angular separation, are compensated for by applying temporal buffers to the pulsing of the RGB laser sources so that the RGB light is horizontally and vertically aligned at the appropriate pixels of the target display during scanning by the MEMS mirrors system.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 14, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Raymond Kirk Price, Joshua Owen Miller, Yarn Chee Poon
  • Patent number: 10591741
    Abstract: Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, hybrid polarizing beam splitters and systems with such beam splitters that incorporate polymeric reflective polarizers aligned with MacNeille or wire grid reflective polarizers are described.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 17, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Philip E. Watson, Yarn Chee Poon, Andrew J. Ouderkirk
  • Publication number: 20190285899
    Abstract: A wearable image display system includes a headpiece, a first and a second light engine, and a first and a second optical component. The first and second light engines generate a first and a second set of beams respectively, each beam substantially collimated so that the first and second set form a first and a second virtual image respectively. Each optical component is located to project an image onto a first and a second eye of a wearer respectively. The first and second sets of beams are directed to incoupling structures of the first and second optical components respectively. Exit structures of the first and second optical components guide the first and second sets of beams onto the first and second eyes respectively. The optical components are located between the light engines and the eyes. Both of the light engines are mounted to a central portion of the headpiece.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 19, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Tapani Levola, Pasi Saarikko, Steven John Robbins, Yarn Chee Poon, Lena Adele Wolfe, Erica Lee Towle
  • Publication number: 20190227315
    Abstract: A display system includes a first light source, a second light source, at least one movable mirror, and an attenuator. The first light source is configured to provide a first light in a first optical path. The second light source is configured to provide a second light in a second optical path. A portion of the second optical path overlaps the first optical path in an overlapping portion. The attenuator is positioned in at least the first optical path and configured to attenuate at least the first light. The movable mirror is movable to deflect the overlapping portion.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 25, 2019
    Inventors: Ruipeng SUN, Yarn Chee POON, Chuan PU, Richard Allen JAMES, Joshua Owen MILLER
  • Patent number: 10359627
    Abstract: An apparatus for use in replicating an image associated with an input-pupil to an output-pupil includes a planar optical waveguide including a bulk-substrate, and also including an input-coupler, an intermediate-component and an output-coupler. The input-coupler couples light corresponding to the image into the bulk-substrate and towards the intermediate-component. The intermediate-component performs horizontal or vertical pupil expansion and directs the light corresponding to the image towards the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples light corresponding to the image, which travels from the input-coupler to the output-coupler, out of the waveguide. The apparatus further includes an adjacent planar optical component to provide a more uniform intensity distribution compared to if the adjacent planar optical component were absent.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: July 23, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: R. Andrew Wall, Scott Woltman, Steven John Robbins, Xinye Lou, Gangok Lee, Yarn Chee Poon, Tuomas Vallius, Pasi Kostamo, Tapani Levola, Yijing Fu
  • Publication number: 20190219815
    Abstract: Systems and methods are utilized for performing geometric multiplexing in MEMS display systems that utilize RGB laser diodes and MEMS mirrors to compensate for angular separation between the RGB light that results from passing the RGB light emitted from the RGB laser diodes through a single collimating lens shared by the RGB laser diodes, as opposed to utilizing a separate collimating lens for each corresponding laser diode. Spatial offsets between the RGB light at the target display, resulting from the angular separation, are compensated for by applying temporal buffers to the pulsing of the RGB laser sources so that the RGB light is horizontally and vertically aligned at the appropriate pixels of the target display during scanning by the MEMS mirrors system.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 18, 2019
    Inventors: Raymond Kirk Price, Joshua Owen Miller, Yarn Chee Poon