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).

  • Publication number: 20190098267
    Abstract: Features of the present disclosure implement a light illumination system that utilizes a scanning device that is pivotal on an axis between a plurality of positions. To this end, the system may partition the image frame into at least a first sub-image frame and a second sub-image frame. The system may adjust the scanning device, during the first time period, to a first position to reflect light associated with the first sub-image and adjust the scanning mirror, during the second time period, to a second position to reflect light associated with the second sub-image. Thus, by implementing the techniques described herein, the overall size of a linear array (e.g., liquid crystal on silicon or LCoS) in an optics systems (as well as of some optical components in the optics systems) may be reduced from its current constraints, and thereby achieving a compact optical system that is mobile and user friendly.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 28, 2019
    Inventors: Yarn Chee POON, Richard A. JAMES, Jeb WU, Mark Louis Wilson O'HANLON, Vijay Krishna PARUCHURU, Keita OKA
  • Patent number: 10162181
    Abstract: Introduced here is a display device that comprises a light emitter and a diffractive optical element (DOE) that is optically coupled to receive light from the light emitter and to convey the light along an optical path. The DOE may have an input surface and an output surface parallel to the input surface, where the input surface and the output surface each have a central region and a peripheral region. The DOE further may have optical characteristics such that light exiting the DOE in the peripheral region of the output surface has greater brightness than light exiting the DOE in the central region of the output surface.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 25, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: James Randolph Webster, Jeb Wu, Steven John Robbins, Tuomas Heikki Sakari Vallius, Yarn Chee Poon
  • Patent number: 10147235
    Abstract: A system and method are disclosed for use in a virtual reality environment including a head mounted display device and a processing unit. In examples, the processing unit adjusts an amount by which left and right displayed images overlap each other at a given distance, such as the focal distance, from the head mounted display device.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 4, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Cynthia S. Bell, Drew Steedly, Yarn Chee Poon, Joachim Pehserl
  • Patent number: 10139645
    Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: November 27, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Yarn Chee Poon, Andrew J. Ouderkirk, Philip E. Watson, Xiaohui Cheng, Kim Leong Tan, Stephen J. Willett
  • Patent number: 10088689
    Abstract: An optical light engine includes a pair of lenticular microlenslet arrays (MLAs) located on each side of a polarization converter. Non-polarized light from a source in the engine is focused by the first MLA onto cells of the polarization converter which converts the light to a common state of polarization to increase efficiency and improve contrast in the system. A half wave retarder is included on the polarization converter to change the polarization of any light that is reflected from downstream optical components to match that of the forward propagating light. The second MLA, which includes a relatively large number of microlenslet elements, collects the light from the polarization converter and homogenizes the light to be highly uniform when received at a downstream imaging panel in the light engine such as a liquid crystal on silicon (LCOS) panel.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: October 2, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Yarn Chee Poon, Steve Robbins, Angus Wu, Jeb Wu, James Webster, Richard Andrew Wall, Richard James, Robin Hsiung, RuPing Huang, Freeway Lin
  • Publication number: 20180267318
    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 23, 2018
    Publication date: September 20, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Tapani Levola, Pasi Saarikko, Steven John Robbins, Yarn Chee Poon, Lena Adele Wolfe, Erica Lee Towle
  • Publication number: 20180217394
    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: March 27, 2018
    Publication date: August 2, 2018
    Inventors: Philip E. Watson, Yarn Chee Poon, Andrew J. Ouderkirk
  • Patent number: 10018844
    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: February 9, 2015
    Date of Patent: July 10, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tapani Levola, Pasi Saarikko, Steven John Robbins, Yarn Chee Poon, Lena Adele Wolfe, Erica Lee Towle
  • Patent number: 9958699
    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: December 20, 2013
    Date of Patent: May 1, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Philip E. Watson, Yarn Chee Poon, Andrew J. Ouderkirk
  • Patent number: 9915825
    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 a volume layer, embedded between first and second major planar surfaces of the bulk-substrate, configured to cause light that is output by the output-coupler to have a more uniform intensity distribution compared to if the volume layer were absent.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: March 13, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Steven John Robbins, Scott Woltman, R. Andrew Wall, Yarn Chee Poon
  • Publication number: 20170351109
    Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
    Type: Application
    Filed: July 31, 2017
    Publication date: December 7, 2017
    Inventors: Yarn Chee Poon, Andrew J. Ouderkirk, Philip E. Watson, Xiaohui Cheng, Kim Leong Tan, Stephen J. Willett
  • Patent number: 9784985
    Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: October 10, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Yarn Chee Poon, Andrew J. Ouderkirk, Philip E. Watson, Xiaohui Cheng, Kim Leong Tan, Stephen J. Willett
  • Patent number: 9766464
    Abstract: In a near-eye or heads-up display system including a display engine and an optical waveguide, a quarter-wave retarder (QWR) is positioned between a polarizing beam splitter (PBS) of the display engine and an input diffraction grating of the waveguide. Additionally, a linear polarizer can be positioned between the PBS and the QWR. Light corresponding to an image generated by a reflective microdisplay of the display engine is diffracted into the waveguide by the input diffraction grating, so it can travel by way of total internal reflection to an output coupler and viewed by a human eye. The QWR alone, or in combination with the linear polarizer, prevents a ghost image that may otherwise occur if a portion of the light corresponding to the image, that is diffracted into the waveguide by the input diffraction grating, is diffractively out-coupled by the input diffraction grating and thereafter reflects off the reflective microdisplay.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 19, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Yarn Chee Poon, Ian Nguyen, Eliezer Glik, Tapani Levola
  • Patent number: 9726891
    Abstract: A display engine assembly comprises a first imager and a second imager to generate a left image and a right image, respectively, in a head-mounted display device. The left and right images are left and right components, respectively, of a single stereoscopic image. The display engine further comprises an optical waveguide optically coupled to the first imager and the second imager. The optical waveguide is part of a first optical path to convey the left image to a left eye of a user of the head-mounted display device and is also part of a second optical path to convey the right image to a right eye of the user of the head-mounted display device.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 8, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: James Randolph Webster, Jeb Wu, Richard James, Steven John Robbins, Yarn Chee Poon, KengHui Lin, Chienchih Hsiung
  • Publication number: 20170176747
    Abstract: Disclosed are an apparatus and method for increasing the FOV of displayed images in a head-mounted display (HMD) device. A display apparatus comprises a display module and a waveguide optically coupled to the display module. The display module may generate individually multiple different portions of an image, to be conveyed to an optical receptor of a user of the HMD device, and may include multiple optical output ports, each to output a different portion of the image. The waveguide may include multiple optical input ports, each optically coupled to a different one of the optical output ports of the display module, where the waveguide is configured to output, to the optical receptor of the user, light corresponding to the image in its entirety.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 22, 2017
    Inventors: Tuomas Heikki Sakari Vallius, Richard Andrew Wall, Pasi Petteri Pietilä, Yarn Chee Poon, Ian Anh Nguyen, Jeb Wu
  • Publication number: 20170176745
    Abstract: In a near-eye or heads-up display system including a display engine and an optical waveguide, a quarter-wave retarder (QWR) is positioned between a polarizing beam splitter (PBS) of the display engine and an input diffraction grating of the waveguide. Additionally, a linear polarizer can be positioned between the PBS and the QWR. Light corresponding to an image generated by a reflective microdisplay of the display engine is diffracted into the waveguide by the input diffraction grating, so it can travel by way of total internal reflection to an output coupler and viewed by a human eye. The QWR alone, or in combination with the linear polarizer, prevents a ghost image that may otherwise occur if a portion of the light corresponding to the image, that is diffracted into the waveguide by the input diffraction grating, is diffractively out-coupled by the input diffraction grating and thereafter reflects off the reflective microdisplay.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Yarn Chee Poon, Ian Nguyen, Eliezer Glik, Tapani Levola
  • Publication number: 20170171538
    Abstract: A system and method are disclosed for use in a virtual reality environment including a head mounted display device and a processing unit. In examples, the processing unit adjusts an amount by which left and right displayed images overlap each other at a given distance, such as the focal distance, from the head mounted display device.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 15, 2017
    Inventors: Cynthia S. Bell, Drew Steedly, Yarn Chee Poon, Joachim Pehserl
  • Publication number: 20170160547
    Abstract: Introduced here is a display device that comprises a light emitter and a diffractive optical element (DOE) that is optically coupled to receive light from the light emitter and to convey the light along an optical path. The DOE may have an input surface and an output surface parallel to the input surface, where the input surface and the output surface each have a central region and a peripheral region. The DOE further may have optical characteristics such that light exiting the DOE in the peripheral region of the output surface has greater brightness than light exiting the DOE in the central region of the output surface.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 8, 2017
    Inventors: James Randolph Webster, Jeb Wu, Steven John Robbins, Tuomas Heikki Sakari Vallius, Yarn Chee Poon
  • Publication number: 20170131545
    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: Application
    Filed: November 10, 2015
    Publication date: May 11, 2017
    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: 20170131551
    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 a volume layer, embedded between first and second major planar surfaces of the bulk-substrate, configured to cause light that is output by the output-coupler to have a more uniform intensity distribution compared to if the volume layer were absent.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 11, 2017
    Inventors: Steven John Robbins, Scott Woltman, R. Andrew Wall, Yarn Chee Poon