Patents by Inventor Shlomo Alon-Braitbart
Shlomo Alon-Braitbart 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: 11663937Abstract: A pupil tracking system including a light source for illuminating a viewer's eye, an aperture located to pass light from the light source after retro-reflection from the viewer's pupil, the aperture sized and shaped to pass the light from the light source and block at least a portion of other light arriving at the aperture, and a light sensor for tracking a location of a spot produced by the light from the light source which passed the aperture. Related apparatus and methods are also described.Type: GrantFiled: February 19, 2018Date of Patent: May 30, 2023Assignee: Real View Imaging Ltd.Inventors: Barry Loevsky, Shlomo Alon-Braitbart, Shaul Alexander Gelman, Carmel Rotschild
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Patent number: 11520288Abstract: A method of producing a Computer Generated Hologram (CGH) for producing a 3 dimensional (3D) holographic image, including receiving data describing a 3D scene, producing a first CGH for producing a 2D image of the 3D scene as viewed from a specific viewing direction, the 2D image perpendicular to the viewing direction, decomposing the 2D image to a plurality of slices at different depths along the viewing direction, adjusting the first CGH by making, for at least one of the plurality of slices, a correction to the CGH associated with a depth of the slice along the viewing direction, thereby producing a corrected CGH for producing a 3D holographic image of the 3D scene. Related apparatus and methods are also described.Type: GrantFiled: February 24, 2020Date of Patent: December 6, 2022Assignee: Real View Imaging Ltd.Inventors: Shlomo Alon-Braitbart, Carmel Rotschild, Shaul Alexander Gelman
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Publication number: 20220155601Abstract: A method of displaying a Computer Generated Holographic (CGH) image by a display, including setting pixel values of a Spatial Light Modulator (SLM) included in a Head Mounted Display (HMD), producing a interference based holographic image at a first location by projecting coherent light onto the SLM, and re-imaging the holographic image from the first location to form a holographic image in front of an eye of a viewer wearing the HMD. Related apparatus and methods are also described.Type: ApplicationFiled: February 1, 2022Publication date: May 19, 2022Applicant: Real View Imaging Ltd.Inventors: Shaul Alexander GELMAN, Carmel ROTSCHILD, Shlomo ALON-BRAITBART, Aviad KAUFMAN
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Patent number: 10877437Abstract: A method for directing non-modulated light from a Spatial Light Modulator (SLM) and allowing through modulated light for producing an interference based holographic image, the method including illuminating the SLM with coherent light, thereby producing a mix of light modulated by the SLM and light not modulated by the SLM, and projecting the mix of the modulated light and the not modulated light along an optical axis onto a volume grating, wherein the volume grating directs the not modulated light away from the holographic image and allows through modulated light for producing the holographic image. Related apparatus and methods are also described.Type: GrantFiled: August 21, 2018Date of Patent: December 29, 2020Assignee: Real View imaging Ltd.Inventors: Shaul Alexander Gelman, Shlomo Alon-Braitbart, Barry Loevsky, Or Peleg, Carmel Rotschild
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Publication number: 20200192288Abstract: A method of producing a Computer Generated Hologram (CGH) for producing a 3 dimensional (3D) holographic image, including receiving data describing a 3D scene, producing a first CGH for producing a 2D image of the 3D scene as viewed from a specific viewing direction, the 2D image perpendicular to the viewing direction, decomposing the 2D image to a plurality of slices at different depths along the viewing direction, adjusting the first CGH by making, for at least one of the plurality of slices, a correction to the CGH associated with a depth of the slice along the viewing direction, thereby producing a corrected CGH for producing a 3D holographic image of the 3D scene. Related apparatus and methods are also described.Type: ApplicationFiled: February 24, 2020Publication date: June 18, 2020Applicant: Real View Imaging Ltd.Inventors: Shlomo ALON-BRAITBART, Carmel ROTSCHILD, Shaul Alexander GELMAN
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Publication number: 20200184865Abstract: A pupil tracking system including a light source for illuminating a viewer's eye, an aperture located to pass light from the light source after retro-reflection from the viewer's pupil, the aperture sized and shaped to pass the light from the light source and block at least a portion of other light arriving at the aperture, and a light sensor for tracking a location of a spot produced by the light from the light source which passed the aperture. Related apparatus and methods are also described.Type: ApplicationFiled: February 19, 2018Publication date: June 11, 2020Applicant: Real View Imaging Ltd.Inventors: Barry LOEVSKY, Shlomo ALON-BRAITBART, Shaul Alexander GELMAN, Carmel ROTSCHILD
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Patent number: 10571862Abstract: A method of producing a Computer Generated Hologram (CGH) for producing a 3 dimensional (3D) holographic image, including receiving data describing a 3D scene, producing a first CGH for producing a 2D image of the 3D scene as viewed from a specific viewing direction, the 2D image perpendicular to the viewing direction, decomposing the 2D image to a plurality of slices at different depths along the viewing direction, adjusting the first CGH by making, for at least one of the plurality of slices, a correction to the CGH associated with a depth of the slice along the viewing direction, thereby producing a corrected CGH for producing a 3D holographic image of the 3D scene. Related apparatus and methods are also described.Type: GrantFiled: May 19, 2016Date of Patent: February 25, 2020Assignee: Real View Imaging Ltd.Inventors: Shlomo Alon-Braitbart, Carmel Rotschild, Shaul Alexander Gelman
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Publication number: 20190155033Abstract: A method of displaying a Computer Generated Holographic (CGH) image by a display, including setting pixel values of a Spatial Light Modulator (SLM) included in a Head Mounted Display (HMD), producing a interference based holographic image at a first location by projecting coherent light onto the SLM, and re-imaging the holographic image from the first location to form a holographic image in front of an eye of a viewer wearing the HMD. Related apparatus and methods are also described.Type: ApplicationFiled: February 22, 2017Publication date: May 23, 2019Inventors: Shaul Alexander GELMAN, Carmel ROTSCHILD, Shlomo ALON-BRAITBART, Aviad KAUFMAN
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Publication number: 20190004478Abstract: A method for directing non-modulated light from a Spatial Light Modulator (SLM) and allowing through modulated light for producing an interference based holographic image, the method including illuminating the SLM with coherent light, thereby producing a mix of light modulated by the SLM and light not modulated by the SLM, and projecting the mix of the modulated light and the not modulated light along an optical axis onto a volume grating, wherein the volume grating directs the not modulated light away from the holographic image and allows through modulated light for producing the holographic image. Related apparatus and methods are also described.Type: ApplicationFiled: August 21, 2018Publication date: January 3, 2019Inventors: Shaul Alexander GELMAN, Shlomo Alon-Braitbart, Barry Loevsky, Or Peleg, Carmel Rotschild
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Patent number: 9933753Abstract: A method of enlarging an observation window from which the reconstruction from a Computer Generated Hologram (CGH) may be viewed, including reproducing a CGH, and shifting a location of an exit pupil or observation window of an optical system reproducing the CGH. A method of increasing a viewing angle from which the reconstruction from a Computer Generated Hologram (CGH) may be seen, including producing a plurality of instances of a CGH, projecting each one of the instances in a different direction so that a first exit pupil of a first instance is close to a second exit pupil of a second instance. An optical system including a plurality of exit pupils associated with a plurality of optical components, further including a light deflector for jittering a location of a first exit pupil so as to increase an overlap of the first exit pupil with a second exit pupil. Related apparatus and methods are also described.Type: GrantFiled: July 30, 2013Date of Patent: April 3, 2018Assignee: Real View Imaging Ltd.Inventors: Shaul Alexander Gelman, Shlomo Alon-Braitbart, Yuval Yehuda Yoreh, Carmel Rotschild
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Patent number: 9709953Abstract: A method for despeckling the image reproduced by a Computer Generated Hologram (CGH) including reproducing a CGH, and jittering a location of an exit pupil of an optical system through which the CGH is imaged, relative to an observer's input pupil, so as to shift at least some speckles out of the exit pupil. A method for despeckling a Computer Generated Holographic image including computing a first modulation for a first holographic image, and computing a second modulation for a second holographic image of a same holographic image using an initial phase distribution used for calculating the first holographic image as an initial phase distribution used for calculating the second modulation. Related apparatus and methods are also described.Type: GrantFiled: July 30, 2013Date of Patent: July 18, 2017Assignee: Real View Imaging Ltd.Inventors: Shlomo Alon-Braitbart, Shaul Alexander Gelman, Carmel Rotschild
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Publication number: 20150234351Abstract: A method for despeckling a Computer Generated Hologram (CGH) including producing a CGH, and jittering a location of an exit pupil of an optical system through which the CGH is imaged, relative to an observer's input pupil, so as to shift at least some speckles out of the exit pupil. A method for despeckling a Computer Generated Holographic movie including computing a first modulation of a first holographic image in a holographic movie, and computing a second modulation of a second holographic image using an initial phase distribution used for calculating the first holographic image as an initial phase distribution used for calculating the second modulation. Related apparatus and methods are also described.Type: ApplicationFiled: July 30, 2013Publication date: August 20, 2015Inventors: Shlomo Alon-Braitbart, Shaul Alexander Gelman, Carmel Rotschild
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Publication number: 20150168914Abstract: A method of enlarging an observation window from which the reconstruction from a Computer Generated Hologram (CGH) may be viewed, including reproducing a CGH, and shifting a location of an exit pupil or observation window of an optical system reproducing the CGH. A method of increasing a viewing angle from which the reconstruction from a Computer Generated Hologram (CGH) may be seen, including producing a plurality of instances of a CGH, projecting each one of the instances in a different direction so that a first exit pupil of a first instance is close to a second exit pupil of a second instance. An optical system including a plurality of exit pupils associated with a plurality of optical components, further including a light deflector for jittering a location of a first exit pupil so as to increase an overlap of the first exit pupil with a second exit pupil. Related apparatus and methods are also described.Type: ApplicationFiled: July 30, 2013Publication date: June 18, 2015Inventors: Shaul Alexander Gelman, Shlomo Alon-Braitbart, Yuval Yehuda Yoreh, Carmel Rotschild