Patents by Inventor David D. Bohn

David D. Bohn 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: 10394033
    Abstract: A parallel beam flexure mechanism (“PBFM”) for adjusting an interpupillary distance (“IPD”) of an optical device is disclosed. The PBFM includes a plurality of flexures, a mounting platen, an optical payload, and a horizontal translation mechanism. The mounting platen has a first end and a second end, where the mounting platen is attached to a first set of flexures that are in a parallel arrangement to a second set of flexures attached to a frame of an optical device, such as a head mounted display. The optical payload and horizontal translation mechanism are attached to the mounting platen, where the horizontal translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the flexures, thereby adjusting the IPD of the optical device.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: August 27, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: David D. Bohn
  • Patent number: 10345903
    Abstract: A method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: July 9, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Steve Robbins, Scott C. McEldowney, Xinye Lou, David D. Bohn, Quentin Simon Charles Miller, David Nister, Gerhard Schneider, Christopher Maurice Mei, Nathan Ackerman
  • Patent number: 10254464
    Abstract: In embodiments of a transparent display backlight assembly, a backlight panel is operable as a transparent panel, and a light source generates light that the backlight panel directs from the light source to illuminate a display panel of a display device. Light refraction features refract and scatter the light, where the light refraction features are spaced for approximate transparency of the backlight panel and to illuminate the display panel. An active diffuser can be implemented as an additional transparent panel and operable for activation to diffuse the light from the backlight panel that illuminates the display panel.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 9, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David D. Bohn, Rod G. Fleck, Derek Leslie Knee
  • 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: 10222620
    Abstract: A near-eye display system comprises first and second optical waveguides. The first optical waveguide is configured to receive a first image through a first entry aperture, to expand the first image along the first optical waveguide, and to release an expanded first image. Layered parallel to the first optical waveguide, the second optical waveguide is configured to receive a second image through a second entry aperture, to expand the second image along the second optical waveguide, and to release an expanded second image to overlap the expanded first image. The second entry aperture is offset from the first entry aperture along the second optical waveguide.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: March 5, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: David D. Bohn
  • Publication number: 20190049727
    Abstract: Embodiments related near-eye display devices having angularly multiplexed holograms are disclosed. One disclosed embodiment provides a near-eye display device including an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating comprising a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Sheng Yuan, Ian Nguyen, Steve Robbins, David D. Bohn
  • Patent number: 10146053
    Abstract: Near-eye display devices having angularly multiplexed holograms are disclosed. One example includes an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating including a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 4, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Sheng Yuan, Ian Nguyen, Steve Robbins, David D. Bohn
  • Patent number: 10063846
    Abstract: In embodiments of selective illumination of a region within a field of view, an illumination system includes light sources implemented for selective illumination of a target within a field of view of an imaging system. The illumination system also includes optics that can be positioned to direct light that is generated by a subset of the light sources to illuminate a region within the field of view. An imaging application can activate the subset of the light sources and position the optics to illuminate the region within the field of view that includes the target of the selective illumination.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 28, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Randall T. Crane, David D. Bohn, Rod G. Fleck
  • Publication number: 20180231779
    Abstract: A near-eye display system comprises first and second optical waveguides. The first optical waveguide is configured to receive a first image through a first entry aperture, to expand the first image along the first optical waveguide, and to release an expanded first image. Layered parallel to the first optical waveguide, the second optical waveguide is configured to receive a second image through a second entry aperture, to expand the second image along the second optical waveguide, and to release an expanded second image to overlap the expanded first image. The second entry aperture is offset from the first entry aperture along the second optical waveguide.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 16, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventor: David D. Bohn
  • Patent number: 10048780
    Abstract: Architecture for managing clutch height in an optical navigational device such as a computer mouse. In one embodiment for a mouse, a feature can be molded into the bottom case that limits the clutch height by occluding the reflected light to the image sensor when the device is lifted from the tracking surface. Tracking is disabled when the clutch height threshold is exceeded, and re-enabled when the device is brought under the distance clutch height threshold. The device includes firmware controlled algorithm adjustments to one or more correlation parameters. User interfaces may also be employed to implement various aspects of the embodiments discussed herein.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 14, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Marshall T. DePue, David M. Lane, Stephen C. Klein, Brian L. Hastings, David D. Bohn
  • Patent number: 10025355
    Abstract: In embodiments of a flexible display extendable assembly, an extendable assembly includes a slideable display guide integrated in a first housing part of an extendable electronic device. The extendable electronic device includes a flexible display that slide-engages into the first housing part of the extendable electronic device. The extendable assembly includes an extendable mechanism that is coupled in a second housing part of the extendable electronic device and to the slideable display guide. The first and second housing parts of the extendable electronic device slide-engage relative to each other. The extendable mechanism is implemented to extend as the first and second housing parts slide apart relative to each other, and also to retract as the first and second housing parts slide together relative to each other.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 17, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David D. Bohn, Paul M. O'Brien
  • Patent number: 9977216
    Abstract: An optical system includes a liquid lens and an adjustment structure. The liquid lens includes an optically-active region and an adjustment region that is not optically-active. The adjustment region has a volume that corresponds to an optical parameter of the optically-active region. The adjustment structure is configured to interface with the adjustment region. The adjustment structure includes a first portion having a first coefficient of thermal expansion and a second portion having a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion. The first portion and the second portion are configured to collectively change the volume of the adjustment region throughout an operational temperature range of the optical system based on the first coefficient of thermal expansion of and the second coefficient of thermal expansion.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: May 22, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: David D. Bohn
  • Publication number: 20180130391
    Abstract: An optical system comprises a linear illumination source configured to emit light, a first scanning stage configured to receive the light and to scan the light, and a second scanning stage. The linear illumination source is configured to generate light forming a vertical field of view based on the one or more output signals received from a controller modulating the one or more output signals comprising image data defining content. The first scanning stage redirects portions of the light to generate an output defining a horizontal field of view based on the one or more output signals of the controller. The first scanning device combines the vertical field of view and the horizontal field of view in the output light to create a two-dimensional light image of the content. The second scanning stage receives and directs the output of the first scanning stage toward a projected exit pupil.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 10, 2018
    Inventor: David D. Bohn
  • Patent number: 9959818
    Abstract: A display engine includes light emitting elements, an optical subsystem to produce a single collimated beam of light from the light emitted by the light emitting elements, one or more image producing MEMS mirrors, one or more image reprojecting MEMS mirrors, and a controller. One of the image producing MEMS mirror(s) is positioned to reflect the single beam of light produced by the optical subsystem. The controller controls the image producing MEMS mirror(s) and the image reprojecting MEMS mirror(s). The image reprojecting MEMS mirror(s) is/are controlled and is/are positioned relative to the image producing MEMS mirror(s) and relative to input-coupler(s) of optical waveguide(s) so that a pupil corresponding to a scanned image that the image producing MEMS mirror(s) project onto one of the image reprojecting MEMS mirror(s), is reprojected by the image reprojecting MEMS mirror(s) onto the input-coupler(s) of the optical waveguide(s) and thereby coupled into the optical waveguide(s).
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 1, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: David D. Bohn
  • Publication number: 20180101014
    Abstract: A parallel beam flexure mechanism (“PBFM”) for adjusting an interpupillary distance (“IPD”) of an optical device is disclosed. The PBFM includes a plurality of flexures, a mounting platen, an optical payload, and a horizontal translation mechanism. The mounting platen has a first end and a second end, where the mounting platen is attached to a first set of flexures that are in a parallel arrangement to a second set of flexures attached to a frame of an optical device, such as a head mounted display. The optical payload and horizontal translation mechanism are attached to the mounting platen, where the horizontal translation mechanism is configured to translate the mounting platen in a horizontal direction by bending the flexures, thereby adjusting the IPD of the optical device.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 12, 2018
    Inventor: David D. Bohn
  • Publication number: 20180098056
    Abstract: A near-to-eye display (NED) device comprises a light sensor, a processor, a first imager to generate a left image of an object for the user's left optical sensor, and a second imager to generate a right image of the object for the user's right optical sensor. The device further comprises at least one light-transmissive optical component arranged to receive concurrently the left image and the right image, the at least one light-transmissive optical component further arranged to direct a first portion of each of the left and right images to the left and right optical sensors, respectively, of the user while directing a second portion of each of the left and right images to the light sensor. The at least one processor a binocular misalignment between the left and right images based on output of the light sensor and to control the imagers to correct for the misalignment.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 5, 2018
    Inventor: David D. Bohn
  • Publication number: 20180082644
    Abstract: A display engine includes light emitting elements, an optical subsystem to produce a single collimated beam of light from the light emitted by the light emitting elements, one or more image producing MEMS mirrors, one or more image reprojecting MEMS mirrors, and a controller. One of the image producing MEMS mirror(s) is positioned to reflect the single beam of light produced by the optical subsystem. The controller controls the image producing MEMS mirror(s) and the image reprojecting MEMS mirror(s). The image reprojecting MEMS mirror(s) is/are controlled and is/are positioned relative to the image producing MEMS mirror(s) and relative to input-coupler(s) of optical waveguide(s) so that a pupil corresponding to a scanned image that the image producing MEMS mirror(s) project onto one of the image reprojecting MEMS mirror(s), is reprojected by the image reprojecting MEMS mirror(s) onto the input-coupler(s) of the optical waveguide(s) and thereby coupled into the optical waveguide(s).
    Type: Application
    Filed: September 22, 2016
    Publication date: March 22, 2018
    Inventor: David D. Bohn
  • Publication number: 20180052325
    Abstract: Examples are disclosed that relate to scanning optical systems. One example provides an optical system comprising an illumination source configured to emit light, a first scanning stage configured to receive the light and to scan the light, and a second scanning stage configured to receive and direct the light from the first scanning stage toward a projected exit pupil.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 22, 2018
    Inventor: David D. Bohn
  • Publication number: 20180017757
    Abstract: An optical system includes a liquid lens and an adjustment structure. The liquid lens includes an optically-active region and an adjustment region that is not optically-active. The adjustment region has a volume that corresponds to an optical parameter of the optically-active region. The adjustment structure is configured to interface with the adjustment region. The adjustment structure includes a first portion having a first coefficient of thermal expansion and a second portion having a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion. The first portion and the second portion are configured to collectively change the volume of the adjustment region throughout an operational temperature range of the optical system based on the first coefficient of thermal expansion of and the second coefficient of thermal expansion.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 18, 2018
    Inventor: David D. Bohn
  • Patent number: 9807381
    Abstract: In embodiments of imaging structure emitter calibration, an imaging unit includes an emitter structure that direct emits light, and optics direct the light along a light path in the imaging unit to illuminate a projection surface. A reflective panel reflects a portion of the light to illuminate a light sensor. An imaging application receives the sensor data from the light sensor, where the sensor data corresponds to emitted light output from the emitter structure. The imaging application can then initiate a calibration input to the emitter structure to adjust the emitted light output from the emitter structure.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 31, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Rod G. Fleck, David D. Bohn