Patents by Inventor Duane Scott Dewald

Duane Scott Dewald 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: 20240053589
    Abstract: Lens assemblies according to the disclosure include an anamorphic lens component and a primary lens component. The anamorphic lens component includes a first cylindrical lens element, a second cylindrical lens element, and a first spherical lens element disposed between the first and second cylindrical lens elements and translatable along an optical axis of the anamorphic lens assembly with respect to the first and second cylindrical lens elements. Optical characteristics of the anamorphic lens component are adjustable as the first spherical lens element translates along the optical axis such that the first cylindrical lens element, the first spherical lens element, and the second cylindrical lens element in combination produce a first astigmatism that is opposite to a second astigmatism produced in an image plane by the primary lens component as an object moves from infinity focus toward the lens assembly.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 15, 2024
    Inventors: Forrest Tanner Schultz, Duane Scott Dewald
  • Publication number: 20230319244
    Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.
    Type: Application
    Filed: April 11, 2023
    Publication date: October 5, 2023
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
  • Publication number: 20230229011
    Abstract: Embodiments are disclosed for projection systems with rotatable anamorphic lenses. In an embodiment, an optical projection system comprises: a light source; an optical integrator configured to receive light from the light source and to distribute a uniform pattern of light; a relay lens system including two or more rotatable anamorphic lenses, the anamorphic lenses oriented about an optical axis to transform the uniform pattern of light into an image having a specified aspect ratio; at least one spatial light modulator configured to receive the image and direct a spatially modulated image along an optical path; and at least one projection lens configured to receive the spatially modulated image from the optical path and to project the spatially modulated image onto an image plane with the specified aspect ratio.
    Type: Application
    Filed: June 3, 2021
    Publication date: July 20, 2023
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Duane Scott Dewald
  • Patent number: 11632527
    Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 18, 2023
    Assignee: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Martin J. Richards, Barret Lippey, Juan P. Pertierra, Dzhakhangir V. Khaydarov, Duane Scott Dewald, Nathan Shawn Wainwright, Darren Hennigan, John David Jackson
  • Patent number: 11614682
    Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: March 28, 2023
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald
  • Publication number: 20230008842
    Abstract: A projection lens system and method therefor relate to a Fourier lens assembly including a first attachment section, the Fourier lens assembly configured to form a Fourier transform of an object at an exit pupil of the Fourier lens assembly; an aperture configured to block a portion of 5 incident light, the aperture located approximately at a plane of the Fourier transform; and a zoom lens assembly including a second attachment section configured to be removably attached to the first attachment section.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 12, 2023
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Duane Scott Dewald, John David JACKSON, Darren HENNIGAN
  • Patent number: 11307428
    Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 19, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
  • Publication number: 20220038667
    Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 3, 2022
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
  • Publication number: 20220026785
    Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Martin J. RICHARDS, Nathan WAINWRIGHT, Douglas J. GORNY, Duane Scott DEWALD
  • Patent number: 11175577
    Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: November 16, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald
  • Publication number: 20210080737
    Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. RICHARDS, Duane Scott DEWALD, Nathan WAINWRIGHT, Barret LIPPEY
  • Patent number: 10845607
    Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: November 24, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
  • Publication number: 20200159032
    Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. RICHARDS, Duane Scott DEWALD, Nathan WAINWRIGHT, Barret LIPPEY
  • Patent number: 10659739
    Abstract: Projection systems and/or methods comprising a blurring element are disclosed. In one embodiment, a blurring element may comprise a first plate having a pattern on a first surface and second plate. The first plate and the second plate may comprise material having a slight difference in their respective index of refraction. In another embodiment, a blurring element may comprise a first plate having a pattern thereon and a second immersing material. The blurring element may be placed in between two modulators in a dual or multi-modulator projector system. The blurring element may be configured to give a desired shape to the light transmitted from a first modulator to a second modulator.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: May 19, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Nathan Shawn Wainwright, Duane Scott Dewald, Barret Lippey, Brad Walker
  • Patent number: 10545351
    Abstract: A projector system comprising a laser light source, a collimating lens, a fly-eye lens, an integrating rod and a first modulator is disclosed. The light from a laser light source/fiber illuminates a collimator to substantially collimate the light and then is transmitted through a fly's-eye lens. The fly's-eye lens provides a desired angular/spatial light distribution for further processing to a first modulator of the projector system.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 28, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
  • Patent number: 10534251
    Abstract: Prism assemblies for projector display systems disclosed receive inputs from discrete color channels (e.g., red, green and blue channels. In one embodiment, “off state” light from the red, green, and blue DLP modulation may be reflected away from on-state light paths within the prism, tending to avoid uncontrolled scatter. In other embodiments, by keeping the colors separate for much of the prism path length, power levels may be significantly reduced at typical failure points. Light efficiency may be increased significantly when using discrete light sources like LEDs and lasers by removal of the additional red, green, and blue separation and re-combination losses.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: January 14, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Duane Scott Dewald, Nathan Wainwright, Douglas J. Gorny, Martin J. Richards
  • Patent number: 10534188
    Abstract: Integrating rod modules are disclosed comprising a plurality of single and/or solid integrating rods that are mated together by straps. Such modules tend to comprise a greater length than the single and/or solid integrating rods and provide good illumination to a modulator that light from a light source is transmitted through the integrating rod module. The straps may comprise a material (e.g., glass) that has substantially same or similar thermal characteristics as the integrating rods. The straps may be glued to the integrating rods by a glue having a substantially different (e.g., lower) index of refraction than the integrating rods, so as not to disturb the internal reflectance of the rods. The straps may be reinforced by braces that may allow the integrating rod module to be set within a projection display system at an angle substantially different from horizontal.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: January 14, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Duane Scott Dewald, Nathan Wainwright, Douglas J. Gorny, Martin J. Richards
  • Publication number: 20190339601
    Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Martin J. RICHARDS, Nathan WAINWRIGHT, Douglas J. GORNY, Duane Scott DEWALD
  • Publication number: 20190260975
    Abstract: Projection systems and/or methods comprising a blurring element are disclosed. In one embodiment, a blurring element may comprise a first plate having a pattern on a first surface and second plate. The first plate and the second plate may comprise material having a slight difference in their respective index of refraction. In another embodiment, a blurring element may comprise a first plate having a pattern thereon and a second immersing material. The blurring element may be placed in between two modulators in a dual or multi-modulator projector system. The blurring element may be configured to give a desired shape to the light transmitted from a first modulator to a second modulator.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Martin J. RICHARDS, Nathan Shawn WAINWRIGHT, Duane Scott DEWALD, Barret LIPPEY, Brad WALKER
  • Patent number: 10386709
    Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: August 20, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald