Patents by Inventor Steven Charles Read
Steven Charles Read 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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Patent number: 9106811Abstract: Certain aspects relate to a method and system whereby any defined system characteristic, property, or parameter can be normalized for farther improving the displayed image quality. The normalization processing can use a generalized calibration process and can normalize a system characteristic, or a system property, and/or parameter to result in a more uniform or accurately displayed image using a generalized image processing method.Type: GrantFiled: July 20, 2012Date of Patent: August 11, 2015Assignee: IMAX CorporationInventors: Weining Tan, Steven Charles Read, Matthew O'Dor
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Patent number: 9091860Abstract: Systems and methods configured for outputting light having a polarization state distribution that is spatially uniform by applying a correction to, for example, a beam of light with a spatially uniform polarization state distribution that has been altered (unintentionally or otherwise) to become spatially non-uniform are described. A projection system can include an optical element and a polarization-altering device (PAD). The optical element can cause a polarization of light in the projection system to be spatially non-uniform. The PAD can change the polarization state distribution of the light spatially based on an amount of spatial non-uniformity on the light caused by the optical element and before the light enters the optical element. The projection system can output the light having a spatially uniform polarization state distribution.Type: GrantFiled: June 29, 2011Date of Patent: July 28, 2015Assignee: IMAX CorporationInventors: Steven Charles Read, John William Bowron
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Publication number: 20150070741Abstract: Optical systems are provided that include illumination sources, micro-mirror array optical modulators, and an optical element. The micro-mirror array optical modulators can selectively modulate light beams, redirect light by diffraction and reflection, and provide an output modulated light beam that exhibits a diffraction handedness dependent on the spectral bandwidth of the light incident thereupon. The optical element has a color dependent aperture that defines portions of output modulated light beams that are transmitted and remaining portions that are blocked. An efficiency and contrast of each the output modulated light beams acquired by the optical element can be independently determined by a narrow spectral bandwidth of each of the light beams, the spectral characteristics of the color dependent aperture, and the diffraction handedness of the micro-mirror array optical modulators for the associated spectral bandwidth.Type: ApplicationFiled: March 15, 2013Publication date: March 12, 2015Applicant: IMAX cORPORATIONInventors: John Bowron, Steven Charles Read, Andrew F. Kurtz
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Publication number: 20140192076Abstract: Hybrid image projection systems and methods can superimpose image components of an input image. An input image can be divided into smaller regions and at least one parameter of each region can be determined. The input image can be decomposed based on the parameter of each region into multiple, less correlated, orthogonal or quasi-orthogonal image components. Each projector can display respective image components so that the images projected may be optically superimposed on a screen. The superposition of orthogonal or quasi-orthogonal image components can result in superposition of images in an existing multi-projector image systems being more insensitive to inter-projector image misalignment. Superimposing orthogonal or quasi-orthogonal images can be used to avoid visible image degradation, and provide more robust image quality in a multiple projector system implementation.Type: ApplicationFiled: August 14, 2012Publication date: July 10, 2014Applicant: IMAX CORPORATIONInventors: Weining Tan, Steven Charles Read
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Publication number: 20140160301Abstract: Certain aspects relate to a method and system whereby any defined system characteristic, property, or parameter can be normalized for farther improving the displayed image quality. The normalization processing can use a generalized calibration process and can normalize a system characteristic, or a system property, and/or parameter to result in a more uniform or accurately displayed image using a generalized image processing method.Type: ApplicationFiled: July 20, 2012Publication date: June 12, 2014Applicant: IMAX CORPORATIONInventors: Weining Tan, Steven Charles Read, Matthew O'Dor
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Publication number: 20140098351Abstract: Multiple source high performance stereographic projection systems are described. One projection system described comprises a first projection channel, a first light source capable of providing light for the first projection channel, and a second light source capable of providing light for the first projection channel, wherein when the projection system is in a first presentation mode the first and second light sources are on, and wherein when the projection system is in a second presentation mode the first light source is on and the second light source is at a reduced power.Type: ApplicationFiled: December 12, 2013Publication date: April 10, 2014Applicant: IMAX CORPORATIONInventors: Steven Charles Read, Matthew Arnold O'Dor
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Patent number: 8632189Abstract: Multiple source high performance stereographic projection systems are described. One projection system described comprises a first projection channel, a first light source capable of providing light for the first projection channel, and a second light source capable of providing light for the first projection channel, wherein when the projection system is in a first presentation mode the first and second light sources are on, and wherein when the projection system is in a second presentation mode the first light source is on and the second light source is at a reduced power.Type: GrantFiled: May 5, 2005Date of Patent: January 21, 2014Assignee: IMAX CorporationInventors: Steven Charles Read, Matthew Arnold O'Dor
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Patent number: 8421991Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artifacts. Alternative sound systems too are detailed.Type: GrantFiled: January 25, 2011Date of Patent: April 16, 2013Assignee: IMAX CorporationInventors: Steven Charles Read, Brian John Bonnick, George Eric Jacques
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Publication number: 20130088688Abstract: Systems and methods configured for outputting light having a polarization state distribution that is spatially uniform by applying a correction to, for example, a beam of light with a spatially uniform polarization state distribution that has been altered (unintentionally or otherwise) to become spatially non-uniform are described. A projection system can include an optical element and a polarization-altering device (PAD). The optical element can cause a polarization of light in the projection system to be spatially non-uniform. The PAD can change the polarization state distribution of the light spatially based on an amount of spatial non-uniformity on the light caused by the optical element and before the light enters the optical element. The projection system can output the light having a spatially uniform polarization state distribution.Type: ApplicationFiled: June 29, 2011Publication date: April 11, 2013Applicant: IMAXX CorporationInventors: Steven Charles Read, John William
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Patent number: 8251512Abstract: The present invention discloses systems, equipment and methods that allow the improved tiling of multiple projections displays in order to create higher resolution images. Equipment and methods are disclosed for improved blending of the seam by optical means where edge blending masks are employed to create a brightness ramp in the blending region. Equipment and methods are also disclosed for the correction of artifacts in an optically blended seam by modifying the brightness of image pixels in the overlap or blend region. Equipment, systems, and techniques are disclosed for preserving the resolution and uniformity of the image across each seam by actively controlling the position of each display using a servo controlled lens mount for the positioning of each projected image in conjunction with a real time image analysis system.Type: GrantFiled: July 7, 2005Date of Patent: August 28, 2012Assignee: IMAX CorporationInventors: Sean M. Adkins, Steven Charles Read
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Publication number: 20110116048Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artefacts. Alternative sound systems too are detailed.Type: ApplicationFiled: January 25, 2011Publication date: May 19, 2011Applicant: IMAX CORPORATIONInventors: STEVEN CHARLES READ, BRIAN JOHN BONNICK, GEORGE ERIC JACQUES
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Patent number: 7911580Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artifacts. Alternative sound systems too are detailed.Type: GrantFiled: June 30, 2009Date of Patent: March 22, 2011Assignee: Imax CorporationInventors: Steven Charles Read, Brian John Bonnick, George Eric Jacques
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Publication number: 20090262305Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artefacts. Alternative sound systems too are detailed.Type: ApplicationFiled: June 30, 2009Publication date: October 22, 2009Inventors: STEVEN CHARLES READ, Brian John Bonnick, George Eric Jacques
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Patent number: 7595860Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods include moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artifacts. Alternative sound systems too are detailed, as is placement of various loudspeakers relative to, for example, projection screens or theatre walls.Type: GrantFiled: July 27, 2006Date of Patent: September 29, 2009Assignee: IMAX CorporationInventors: Steven Charles Read, Brian John Bonnick, George Eric Jacques
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Publication number: 20080278689Abstract: Multiple source high performance stereographic projection systems are described. One projection system described comprises a first projection channel, a first light source capable of providing light for the first projection channel, and a second light source capable of providing light for the first projection channel, wherein when the projection system is in a first presentation mode the first and second light sources are on, and wherein when the projection system is in a second presentation mode the first light source is on and the second light source is at a reduced power.Type: ApplicationFiled: May 5, 2005Publication date: November 13, 2008Inventors: Steven Charles Read, Matthew Arnold O'Dor
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Publication number: 20080259223Abstract: The present invention discloses systems, equipment and methods that allow the improved tiling of multiple projections displays in order to create higher resolution images. Equipment and methods are disclosed for improved blending of the seam by optical means where edge blending masks are employed to create a brightness ramp in the blending region. Equipment and methods are also disclosed for the correction of artifacts in an optically blended seam by modifying the brightness of image pixels in the overlap or blend region. Equipment, systems, and techniques are disclosed for preserving the resolution and uniformity of the image across each seam by actively controlling the position of each display using a servo controlled lens mount for the positioning of each projected image in conjunction with a real time image analysis system.Type: ApplicationFiled: July 7, 2005Publication date: October 23, 2008Inventors: Steven Charles Read, Sean M. Adkins
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Patent number: 7106411Abstract: Methods of and equipment for converting existing standard motion picture theatres to one having highly immersive, large fields of view are addressed. Aspects of the methods including moving motion picture screens closer to the audience and employing different projection equipment to avoid or minimize appearance of unrealistic or non-natural image artefacts. Alternative sound systems too are detailed.Type: GrantFiled: May 5, 2004Date of Patent: September 12, 2006Assignee: Imax CorporationInventors: Steven Charles Read, Brian John Bonnick, George Eric Jacques
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Patent number: D596659Type: GrantFiled: July 10, 2008Date of Patent: July 21, 2009Assignee: Imax CorporationInventors: Paul Kucera, Steven Charles Read, Simon Treadwell