Patents by Inventor David A. Fattal

David A. Fattal 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: 20190025494
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.
    Type: Application
    Filed: June 8, 2016
    Publication date: January 24, 2019
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Publication number: 20190018186
    Abstract: A privacy display provides a private image exclusively visible within a viewing cone of a viewbox. The privacy display includes a light guide to guide light, a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to direct the diffractively coupled-out light into the viewbox, and a light valve array configured to modulate the diffractively coupled-out light to provide the private image. An extent of the viewbox is determined by a collimation factor of the guided light. A dual-mode privacy display system further includes a broad-angle backlight configured to provide broad-angle light to separately provide a public image visible both inside and outside the viewing cone. The private image may be provided in a privacy mode and the public image may be provided in a public mode of the dual-mode privacy display system.
    Type: Application
    Filed: July 25, 2016
    Publication date: January 17, 2019
    Inventor: David A. Fattal
  • Patent number: 10162116
    Abstract: An apparatus can comprise an optical slab comprising a rigid substrate of substantially transmissive material. The apparatus can also comprise a WDM multiplexer to receive and combine a plurality of optical signals at different wavelengths to form a combined optical signal in the optical slab having an aggregate power. The apparatus can further comprise a broadcaster to distribute the combined optical signal from the optical slab to each of a plurality of different optical receivers with a fraction of the aggregate power of the combined optical signal.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: December 25, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Georgios Panotopoulos, Michael Renne Ty Tan, Wayne Victor Sorin, David A. Fattal
  • Patent number: 10120198
    Abstract: A directional backlight is disclosed. The directional backlight has a plurality of light sources to generate a plurality of input planar lightbeams. The plurality of input planar lightbeams illuminates a directional backplane that has a plurality of directional pixels to scatter the plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. The directional backlight can be used to generate a 3D image by specifying the characteristics of the directional pixels in the directional backplane.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 6, 2018
    Assignee: LEIA INC.
    Inventors: Charles M. Santori, David A. Fattal, Marco Fiorentino, James A. Brug, Zhen Peng
  • Publication number: 20180306965
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.
    Type: Application
    Filed: June 30, 2018
    Publication date: October 25, 2018
    Inventor: David A. Fattal
  • Publication number: 20180299608
    Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a plurality of light beams having different principal angular directions corresponding to different view directions of the multiview display. The display includes multiview pixels that include sub-pixels. A size of the multibeam element is comparable to a size of a sub-pixel in a multiview pixel of the multiview display.
    Type: Application
    Filed: June 16, 2018
    Publication date: October 18, 2018
    Inventors: David A. Fattal, Ming Ma, Xuejian Li
  • Publication number: 20180292647
    Abstract: A head-up display and a three-dimensional (3D) head-up display system provide a plurality of different views of an image combined with a view of a physical environment to an eye box as a combined image to be viewed by a user. The head-up display includes a multibeam diffraction grating-based display configured to provide the different views and an optical combiner configured to relay the different views to the eye box along with the physical environment view. The different views provided by the 3D head-up display system represent different perspective views of a 3D image.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 11, 2018
    Inventor: David A. Fattal
  • Publication number: 20180278923
    Abstract: A head-tracking multiview display and a head-tracking multiview display system selectively provide a primary set of views and a secondary view representing a perspective view of a scene that is angularly adjacent to the primary view set. The head-tracking multiview display includes a multibeam backlight configured to provide a plurality of light beams corresponding to different view directions of a multiview image and a light valve array configured to modulate the light beams to provide a plurality of views including the primary view set and the secondary view. The head-tracking multiview display system further includes a head tracker configured to determine a position of a user. At a first determined position the head-tracking multiview display is configured to provide the primary view set and at a second determined position the head-tracking multiview display being configured to provide the augmented view set.
    Type: Application
    Filed: September 4, 2016
    Publication date: September 27, 2018
    Inventor: David A. Fattal
  • Patent number: 10082613
    Abstract: A directional backlight has a directional backplane that has a plurality of directional pixels configured to scatter a plurality of input planar lightbeams into a plurality of directional lightbeams. Each directional lightbeam has a direction and angular spread controlled by characteristics of a directional pixel in the plurality of directional pixels. A modulation layer having a plurality of modulators configured to modulate the plurality of directional lightbeams. The directional backlight is configured to generate a 3D image with multiple views by specifying the characteristics of the directional pixels in the directional backplane.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: September 25, 2018
    Assignee: LEIA INC.
    Inventors: David A. Fattal, James A. Brug, Charles M. Santori, Marco Fiorentino, Zhen Peng
  • Patent number: 10082684
    Abstract: A high contrast grating optical modulation includes an optical modulator at a front surface of a substrate to modulate received light. The high contrast grating optical modulation further includes a high contrast grating (HCG) lens adjacent to a back surface of the substrate opposite to the front surface to focus incident light onto the optical modulator. The substrate is transparent to operational wavelengths of the focused incident light and the modulated light.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 25, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Sagi Varghese Mathai, David A. Fattal, Michael Renne Ty Tan, Wayne Victor Sorin
  • Publication number: 20180267239
    Abstract: Compact photonics platforms and methods of forming the same are provided. An example of a compact photonics platform includes a layered structure having an active region along a longitudinal axis, a facet having an angle no less than a critical angle formed at at least one longitudinal end of the active region, and a waveguide having at least one grating coupler positioned in alignment with the angled facet to couple light out to or in from the waveguide.
    Type: Application
    Filed: May 11, 2018
    Publication date: September 20, 2018
    Inventors: Di Liang, David A. Fattal, Marco Fiorentino, Zhen Peng, Charles M. Santori, Raymond G. Beausoleil
  • Publication number: 20180262751
    Abstract: In a supersampling technique, an adjacent pair of pixels in a three-dimensional (3D) electronic display is driven based on angular combinations. In particular, a pixel in the pair is driven by an angular combination of a pixel in a 3D view of a 3D image and at least one product of a pixel in an intermediate 3D view and an associated weight. Moreover, the 3D views applied to the pair have different associated angular ranges with different principal angular directions, and the intermediate 3D view has an associated intermediate angular range with an intermediate principal angular direction that is between the principal angular directions. When viewing the 3D electronic display along a principal angular direction in the principal directions of the 3D view, a viewer sees the 3D view, and when viewing the 3D electronic display along the intermediate principal angular direction, the viewer sees the intermediate 3D view.
    Type: Application
    Filed: July 25, 2016
    Publication date: September 13, 2018
    Inventor: David A. Fattal
  • Publication number: 20180246330
    Abstract: A light concentrating backlight includes a light guide to guide light and a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to concentrate the diffractively coupled-out light into an eyebox. A near-eye display system includes the light guide and the diffraction grating, and further includes a light valve array configured to modulate the diffractively coupled-out light to form an image in the eyebox. The formed image is configured to be viewable within the eyebox by a user.
    Type: Application
    Filed: June 30, 2016
    Publication date: August 30, 2018
    Applicant: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 10061139
    Abstract: Various embodiments of the present invention are directed to optical devices comprising planar lenses. In one aspect, an optical device includes two or more planar lenses, and one or more dielectric layers. Each planar lens includes a non-periodic, sub-wavelength grating layer, and each dielectric layer is disposed adjacent to at least one planar lens to form a solid structure. The two or more planar lenses are substantially parallel and arranged to have a common optical axis so that light transmitted through the optical device substantially parallel to the optical axis is refracted by the two or more planar lenses.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: August 28, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jingjing Li, Nate Quitoriano, David A. Fattal, Raymond G. Beausoleil
  • Publication number: 20180227576
    Abstract: A near-eye display and a binocular near-eye display system provide a plurality of different views of an image to different locations within an eye box to impart focus depth cues to a user. The near-eye display includes a multibeam diffraction grating-based display configured to provide the different views and an optical system configured to relay the different views to the different locations within the eye box. The binocular near-eye display system includes a pair of the multibeam diffraction grating-based displays and a binocular optical system configured to provide and relay a stereoscopic image pair representing a three-dimensional (3D) scene to a corresponding pair of laterally displaced eye boxes.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Inventor: David A. Fattal
  • Patent number: 10033159
    Abstract: A mode-controlled laser system includes an active region to generate optical energy in response to an electric signal. The system also includes a mirror to resonate the optical energy in an optical cavity. The system also includes a HCG mode control reflector arranged in the optical cavity to control the resonated optical energy into a substantially non-Gaussian intensity profile. The resonated optical energy can be emitted as an optical signal having the substantially non-Gaussian intensity profile.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: July 24, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Wayne Victor Sorin, Michael Renne Ty Tan, David A. Fattal, Marco Fiorentino
  • Publication number: 20180205929
    Abstract: A multiview camera and multiview imaging system provide a plurality of different cropped images corresponding to a virtual screen located in a scene. The multiview camera includes a plurality of cameras configured to capture different images of a scene that have an overlapping portion in common. The multiview camera further includes an image processor configured to provide cropped images from the captured images according to a cropping window defined within the overlapping portion. The cropping window corresponds to a virtual screen located within the scene. An arrangement of the cameras corresponds to an arrangement of views of a multiview display configured to display the cropped images. The multiview imaging system further includes the multiview display.
    Type: Application
    Filed: February 27, 2016
    Publication date: July 19, 2018
    Inventor: David A. Fattal
  • Publication number: 20180196194
    Abstract: Multiview displays include a backlight and a screen used to form a plurality of multiview pixels. Each multiview pixel includes a plurality of sets of light valves. The backlight includes a light source optically coupled to a plate light guide configured with a plurality of multibeam elements. Each multibeam element corresponds to a set of light valves and is spatially offset with respect to a center of the set of light valves toward a center of the multiview pixel. The plurality of multibeam elements are also configured to couple out light from the plate light guide with different angles and angular offsets such that at least a portion of the coupled-out light beams interleave and propagate in different view directions of the multiview display.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Inventor: David A. Fattal
  • Publication number: 20180188691
    Abstract: Multiview displays include a backlight and a screen used to form a plurality of multiview pixels. Each multiview pixel includes a plurality of sets of light valves. The backlight includes a light source optically coupled to a plate light guide configured with a plurality of multibeam diffraction gratings. Each multibeam diffraction grating corresponds to a set of light valves and is spatially offset with respect to a center of the set of light valves toward a center of the multiview pixel. The plurality of multibeam diffraction gratings is also configured to diffractively couple out light beams from the plate light guide with different diffraction angles and angular offsets such that at least a portion of the coupled-out light beams interleave and propagate in different view directions of the multiview display.
    Type: Application
    Filed: March 4, 2018
    Publication date: July 5, 2018
    Inventor: David A. Fattal
  • Publication number: 20180188440
    Abstract: Time-multiplexed backlighting includes a time-multiplexed light source to provide a light beam having a first non-zero propagation angle during a first time interval and a second non-zero propagation angle during a second time interval. A time-multiplexed backlight includes a light guide configured to guide the light beam and a diffraction grating configured to coupled out a portion of the guided light beam with a different principal angular direction in each of the first time interval and the second time interval. A multiview display includes the time-multiplexed light source and a multibeam backlight to provide coupled-out light beams during each of the first and second time intervals, wherein the principal angular directions of the coupled-out light beams correspond to different view directions of the multiview display.
    Type: Application
    Filed: February 25, 2018
    Publication date: July 5, 2018
    Inventor: David A. Fattal