Patents by Inventor Joshua A Hudman

Joshua A Hudman 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).

  • Spherical mirror having a decoupled aspheric
    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
  • Spherical Birdbath Mirror Having A Decoupled Aspheric
    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