Patents by Inventor Benjamin Judkewitz
Benjamin Judkewitz 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: 10962752Abstract: It is provided a method for identifying optical aberrations. The method comprising the steps of providing at least one first optical beam and a second optical beam; creating a combined beam by at least partially superimposing the first and the second optical beam; focusing the combined beam into or through a medium and detecting radiation excited in the medium by the combined beam due to nonlinear optical effects; detecting the radiation excited in the medium by the combined beam for each one of the phase positions, the spatial positions and/or the time positions of the first beam; and identifying aberrations using signals generated by a detection device for the plurality of the phase positions, the spatial positions and/or the time positions of the first beam relative to the second beam upon the detection of the radiation excited in the medium.Type: GrantFiled: April 12, 2017Date of Patent: March 30, 2021Assignee: CHARITÉ—UNIVERSITÄTSMEDIZIN BERLINInventors: Benjamin Judkewitz, Ioannis Papadopoulos
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Publication number: 20190204574Abstract: It is provided a method for identifying optical aberrations. The method comprising the steps of providing at least one first optical beam and a second optical beam ; creating a combined beam by at least partially superimposing the first and the second optical beam; focusing the combined beam into or through a medium and detecting radiation excited in the medium by the combined beam due to nonlinear optical effects; detecting the radiation excited in the medium by the combined beam for each one of the phase positions, the spatial positions and/or the time positions of the first beam; and identifying aberrations using signals generated by a detection device for the plurality of the phase positions, the spatial positions and/or the time positions of the first beam relative to the second beam upon the detection of the radiation excited in the medium.Type: ApplicationFiled: April 12, 2017Publication date: July 4, 2019Applicant: CHARITÉ - UNIVERSITÄTSMEDIZIN BERLINInventors: Benjamin JUDKEWITZ, Ioannis PAPADOPOULOS
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Patent number: 9569664Abstract: Methods of rapid distinction between growing cells and debris, which determine a time-lapse movie of specimen images, track features of each entity, and categorize each entity as growing cells or debris.Type: GrantFiled: November 5, 2013Date of Patent: February 14, 2017Assignee: California Institute of TechnologyInventors: Benjamin Judkewitz, Guoan Zheng, Samuel Yang, Seung Ah Lee, Shuo Pang, Changhuei Yang, Ying Min Wang
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Patent number: 9354166Abstract: A method and apparatus for irradiating a scattering medium with increased resolution. The method includes transmitting EM radiation from an Electromagnetic (EM) radiation source to a target inside a scattering medium, wherein the target encodes the EM radiation with a variance structure to form encoded EM radiation; measuring, in a detector, transmitted EM radiation comprising at least a portion of the encoded EM radiation transmitted through and exiting the scattering medium; decoding the transmitted EM radiation, comprising EM fields, in a computer, comprising selecting one or more of the EM fields having the variance structure; and irradiating the scattering medium with time reversed EM radiation from a spatial light modulator (SLM), the time reversed EM radiation generated from time reversing the EM fields having the variance structure, thereby forming a focus of the time reversed EM radiation in the scattering medium with the increased resolution.Type: GrantFiled: November 1, 2013Date of Patent: May 31, 2016Assignee: California Institute of TechnologyInventors: Benjamin Judkewitz, Ying Min Wang, Roarke Horstmeyer, Changhuei Yang
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Patent number: 9343494Abstract: A light guided pixel having a guide layer and a light detector layer. The guide layer has a light guide. The light detector layer has a light detecting element that receives light channeled by the light guide. The light guide may include a filter for channeling emissions to the light detecting element.Type: GrantFiled: March 2, 2012Date of Patent: May 17, 2016Assignee: California Institute of TechnologyInventors: Seung Ah Lee, Guoan Zheng, Benjamin Judkewitz, Shuo Pang, Jigang Wu, Changhuei Yang
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Patent number: 9313423Abstract: A device and method for performing fluorescence imaging with digitally time reversed ultrasound encoded light, using a source of ultrasound waves, a coherent light source, a digital optical phase conjugation (DOPC) device comprising a camera and a spatial light modulator (SLM), a detector of fluorescence, and one or more computers, to obtain an output that at least approximates an interaction between a complete time reversed field, of all of the encoded light's fields, and the scattering medium.Type: GrantFiled: March 27, 2013Date of Patent: April 12, 2016Assignees: California Institute of Technology, Northeastern University, London School of Hygiene & Tropical MedicineInventors: Ying Min Wang, Benjamin Judkewitz, Charles A. DiMarzio, Changhuei Yang
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Patent number: 9279972Abstract: Spatial frequency swept interference (SFSI) illumination and imaging methods and devices that interfere two collimated coherent beams to generate an interference pattern of a plurality of illuminating sheets with sweeping spatial frequency.Type: GrantFiled: October 31, 2013Date of Patent: March 8, 2016Assignee: California Institute of TechnologyInventors: Benjamin Judkewitz, Changhuei Yang
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Publication number: 20150241342Abstract: A method for irradiating a scattering medium, including irradiating a scattering medium with radiation from a laser, to form scattered radiation having a scattered field; measuring a difference in the scattered field caused by motion of a moving target in or behind the scattering medium; forming a phase conjugate of the difference to form a phase conjugate field; and irradiating the scattering medium with the phase conjugate field formed using one or more radiation modulating elements. Thus we present that movement of objects can be used as a novel guide star in Digital Optical Phase Conjugation (DOPC). By time reversal of difference of scattering fields of a moving target, light can be focused through scattering media.Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventors: Haojiang Zhou, Benjamin Judkewitz, Changhuei Yang
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Patent number: 9054871Abstract: A device, including one or more Communication Physical Unclonable Function (CPUF) and key storage devices, the CPUF devices each including: a coherent Electromagnetic (EM) radiation source; a spatial light modulator (SLM) connected to the coherent EM radiation source; a volumetric scattering medium connected to the SLM; a detector connected to the volumetric scattering medium; and one or more processors or circuits connected to the detector and one or more processors or circuits connected to the SLM. A communication protocol is also provided.Type: GrantFiled: February 21, 2013Date of Patent: June 9, 2015Assignees: California Institute of Technology, London School of Hygiene & Tropical MedicineInventors: Roarke Horstmeyer, Benjamin Judkewitz, Changhuei Yang, Ivo M. Vellekoop
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Publication number: 20140139840Abstract: Spatial frequency swept interference (SFSI) illumination and imaging methods and devices that interfere two collimated coherent beams to generate an interference pattern of a plurality of illuminating sheets with sweeping spatial frequency.Type: ApplicationFiled: October 31, 2013Publication date: May 22, 2014Applicant: California Institute of TechnologyInventors: Benjamin Judkewitz, Changhuei Yang
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Publication number: 20140133702Abstract: Methods of rapid distinction between growing cells and debris, which determine a time-lapse movie of specimen images, track features of each entity, and categorize each entity as growing cells or debris.Type: ApplicationFiled: November 5, 2013Publication date: May 15, 2014Applicant: California Institute of TechnologyInventors: Guoan Zheng, Samuel Yang, Seung Ah Lee, Shuo Pang, Changhuei Yang, Benjamin Judkewitz, Ying Min Wang
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Publication number: 20140118739Abstract: A method and apparatus for irradiating a scattering medium with increased resolution. The method includes transmitting EM radiation from an Electromagnetic (EM) radiation source to a target inside a scattering medium, wherein the target encodes the EM radiation with a variance structure to form encoded EM radiation; measuring, in a detector, transmitted EM radiation comprising at least a portion of the encoded EM radiation transmitted through and exiting the scattering medium; decoding the transmitted EM radiation, comprising EM fields, in a computer, comprising selecting one or more of the EM fields having the variance structure; and irradiating the scattering medium with time reversed EM radiation from a spatial light modulator (SLM), the time reversed EM radiation generated from time reversing the EM fields having the variance structure, thereby forming a focus of the time reversed EM radiation in the scattering medium with the increased resolution.Type: ApplicationFiled: November 1, 2013Publication date: May 1, 2014Inventors: Benjamin Judkewitz, Ying Min Wang, Roarke Horstmeyer, Changhuei Yang
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Publication number: 20130342665Abstract: A device and method for performing fluorescence imaging with digitally time reversed ultrasound encoded light, using a source of ultrasound waves, a coherent light source, a digital optical phase conjugation (DOPC) device comprising a camera and a spatial light modulator (SLM), a detector of fluorescence, and one or more computers, to obtain an output that at least approximates an interaction between a complete time reversed field, of all of the encoded light's fields, and the scattering medium.Type: ApplicationFiled: March 27, 2013Publication date: December 26, 2013Inventors: Ying Min Wang, Benjamin Judkewitz, Charles A. DiMarzio, Changhuei Yang
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Publication number: 20130243187Abstract: A device, including one or more Communication Physical Unclonable Function (CPUF) and key storage devices, the CPUF devices each comprising: a coherent Electromagnetic (EM) radiation source; a spatial light modulator (SLM) connected to the coherent EM radiation source; a volumetric scattering medium connected to the SLM; a detector connected to the volumetric scattering medium; and one or more processors or circuits connected to the detector and one or more processors or circuits connected to the SLM. A communication protocol is also provided.Type: ApplicationFiled: February 21, 2013Publication date: September 19, 2013Inventors: Roarke Horstmeyer, Benjamin Judkewitz, Changhuei Yang, Ivo M. Vellekoop
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Publication number: 20120223214Abstract: A light guided pixel having a guide layer and a light detector layer. The guide layer has a light guide. The light detector layer has a light detecting element that receives light channeled by the light guide. The light guide may include a filter for channeling emissions to the light detecting element.Type: ApplicationFiled: March 2, 2012Publication date: September 6, 2012Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGYInventors: Seung Ah Lee, Guoan Zheng, Benjamin Judkewitz, Shuo Pang, Jigang Wu, Changhuei Yang