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).
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Publication number: 20240053589Abstract: 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: ApplicationFiled: August 30, 2022Publication date: February 15, 2024Inventors: Forrest Tanner Schultz, Duane Scott Dewald
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Publication number: 20230319244Abstract: 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: ApplicationFiled: April 11, 2023Publication date: October 5, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
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Publication number: 20230229011Abstract: 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: ApplicationFiled: June 3, 2021Publication date: July 20, 2023Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventor: Duane Scott Dewald
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Patent number: 11632527Abstract: 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: GrantFiled: September 25, 2019Date of Patent: April 18, 2023Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. Richards, Barret Lippey, Juan P. Pertierra, Dzhakhangir V. Khaydarov, Duane Scott Dewald, Nathan Shawn Wainwright, Darren Hennigan, John David Jackson
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Patent number: 11614682Abstract: 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: GrantFiled: October 11, 2021Date of Patent: March 28, 2023Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald
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Publication number: 20230008842Abstract: 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: ApplicationFiled: December 3, 2020Publication date: January 12, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Duane Scott Dewald, John David JACKSON, Darren HENNIGAN
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Patent number: 11307428Abstract: 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: GrantFiled: November 24, 2020Date of Patent: April 19, 2022Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
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Publication number: 20220038667Abstract: 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: ApplicationFiled: September 25, 2019Publication date: February 3, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
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Publication number: 20220026785Abstract: 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: ApplicationFiled: October 11, 2021Publication date: January 27, 2022Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. RICHARDS, Nathan WAINWRIGHT, Douglas J. GORNY, Duane Scott DEWALD
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Patent number: 11175577Abstract: 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: GrantFiled: July 18, 2019Date of Patent: November 16, 2021Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald
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Publication number: 20210080737Abstract: 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: ApplicationFiled: November 24, 2020Publication date: March 18, 2021Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Duane Scott DEWALD, Nathan WAINWRIGHT, Barret LIPPEY
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Patent number: 10845607Abstract: 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: GrantFiled: January 27, 2020Date of Patent: November 24, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
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Publication number: 20200159032Abstract: 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: ApplicationFiled: January 27, 2020Publication date: May 21, 2020Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Duane Scott DEWALD, Nathan WAINWRIGHT, Barret LIPPEY
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Patent number: 10659739Abstract: 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: GrantFiled: May 3, 2019Date of Patent: May 19, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Nathan Shawn Wainwright, Duane Scott Dewald, Barret Lippey, Brad Walker
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Patent number: 10545351Abstract: 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: GrantFiled: March 25, 2019Date of Patent: January 28, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Duane Scott Dewald, Nathan Wainwright, Barret Lippey
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Patent number: 10534251Abstract: 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: GrantFiled: December 17, 2018Date of Patent: January 14, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Duane Scott Dewald, Nathan Wainwright, Douglas J. Gorny, Martin J. Richards
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Patent number: 10534188Abstract: 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: GrantFiled: April 26, 2019Date of Patent: January 14, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Duane Scott Dewald, Nathan Wainwright, Douglas J. Gorny, Martin J. Richards
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Publication number: 20190339601Abstract: 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: ApplicationFiled: July 18, 2019Publication date: November 7, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. RICHARDS, Nathan WAINWRIGHT, Douglas J. GORNY, Duane Scott DEWALD
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Publication number: 20190260975Abstract: 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: ApplicationFiled: May 3, 2019Publication date: August 22, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. RICHARDS, Nathan Shawn WAINWRIGHT, Duane Scott DEWALD, Barret LIPPEY, Brad WALKER
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Patent number: 10386709Abstract: 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: GrantFiled: December 23, 2015Date of Patent: August 20, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Martin J. Richards, Nathan Wainwright, Douglas J. Gorny, Duane Scott Dewald