Patents by Inventor Jizuo Zou
Jizuo Zou 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: 20250244227Abstract: Aspects of the present disclosure include methods for modulating an intensity profile of a laser beam. Methods according to certain embodiments include irradiating an acousto-optic device with a laser to generate an output laser beam having a plurality of angularly deflected laser beams, capturing an image of the output laser beam, determining an intensity profile of the output laser beam along a horizontal axis from the captured image and adjusting one or more parameters of a waveform inputted into the acousto-optic device in response to the determined intensity profile to generate an output laser beam having a modulated intensity profile. Systems having a laser, an acousto-optic device, an imaging sensor and a waveform generator as well as non-transitory computer readable storage medium with instructions for practicing the subject methods are also described.Type: ApplicationFiled: April 14, 2025Publication date: July 31, 2025Inventors: Matthew Bahr, Keegan Owsley, Jizuo Zou
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Laser light propagation systems for irradiating a sample in a flow stream and methods for using same
Patent number: 12360041Abstract: Aspects of the disclosure include systems for irradiating a sample in a flow stream. Systems according to certain embodiments include a light propagator having a first fiber optic operably coupled to a first laser and configured to receive light from the first laser at a proximal end and to convey the laser light from a distal end to a first position on the flow stream and a second fiber optic operably coupled to a second laser and configured to receive light from the second laser at a proximal end and to convey the laser light from a distal end to a second position on the flow stream. Methods for irradiating a sample in a flow stream with the subject systems and detecting light from two or more positions on irradiated flow stream are also provided.Type: GrantFiled: August 12, 2021Date of Patent: July 15, 2025Assignee: BECTON, DICKINSON AND COMPANYInventors: Bing Shan, Jizuo Zou, Svitlana Berezhna, Eric D. Diebold, An-Dien Nguyen, Fedor Ilkov, Mark Dorighi -
Publication number: 20250093671Abstract: Aspects of the present disclosure include systems with multiple lasers having modified beam profiles. Systems according to certain embodiments include a first laser that produces a first beam of light, a second laser that produces a second beam of light and a beam shaping component that receives the first beam of light and the second beam of light at substantially the same position from different angles of incidence and is configured to generate from the first beam of light and the second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis. Methods for irradiating a sample in a flow stream with the output beam of light are also described. Kits having one or more lasers and a beam shaping component configured to generate from a first beam of light and a second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis are also provided.Type: ApplicationFiled: November 20, 2024Publication date: March 20, 2025Inventors: Eric Diebold, Jorge Manzarraga, Jizuo Zou
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Patent number: 12222518Abstract: Aspects of the present disclosure include systems with multiple lasers having modified beam profiles. Systems according to certain embodiments include a first laser that produces a first beam of light, a second laser that produces a second beam of light and a beam shaping component that receives the first beam of light and the second beam of light at substantially the same position from different angles of incidence and is configured to generate from the first beam of light and the second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis. Methods for irradiating a sample in a flow stream with the output beam of light are also described. Kits having one or more lasers and a beam shaping component configured to generate from a first beam of light and a second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis are also provided.Type: GrantFiled: April 11, 2019Date of Patent: February 11, 2025Assignee: BECTON, DICKINSON AND COMPANYInventors: Eric D. Diebold, Jizuo Zou, Jorge Manzarraga
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Patent number: 11971343Abstract: Aspects of the disclosure include methods for generating angularly deflected laser beams for irradiating a sample in a flow stream. Methods according to certain embodiments include generating a first set of angularly deflected laser beams and a second set of angularly deflected laser beams, propagating the first set of angularly deflected laser beams along a different optical path from the second set of angularly deflected laser beams, combining the first set of angularly deflected laser beams with the second set of angularly deflected laser beams and directing the combined sets of laser beams onto a sample in a flow stream and detecting light from the sample. Systems having a laser, an acousto-optic device and an optical adjustment component configured to generate a first set of angularly deflected laser beams and a second set of angularly deflected laser beams are also described.Type: GrantFiled: May 2, 2023Date of Patent: April 30, 2024Assignee: BECTON, DICKINSON AND COMPANYInventors: Jizuo Zou, Jorge Manzarraga, Eric D. Diebold
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Patent number: 11953420Abstract: Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.Type: GrantFiled: March 15, 2021Date of Patent: April 9, 2024Assignee: BECTON, DICKINSON AND COMPANYInventors: Jizuo Zou, Matthew Bahr, Eric D. Diebold
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Publication number: 20230273111Abstract: Aspects of the disclosure include methods for generating angularly deflected laser beams for irradiating a sample in a flow stream. Methods according to certain embodiments include generating a first set of angularly deflected laser beams and a second set of angularly deflected laser beams, propagating the first set of angularly deflected laser beams along a different optical path from the second set of angularly deflected laser beams, combining the first set of angularly deflected laser beams with the second set of angularly deflected laser beams and directing the combined sets of laser beams onto a sample in a flow stream and detecting light from the sample. Systems having a laser, an acousto-optic device and an optical adjustment component configured to generate a first set of angularly deflected laser beams and a second set of angularly deflected laser beams are also described.Type: ApplicationFiled: May 2, 2023Publication date: August 31, 2023Inventors: Jizuo Zou, Jorge Manzarraga, Eric D. Diebold
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Patent number: 11680889Abstract: Aspects of the disclosure include methods for generating angularly deflected laser beams for irradiating a sample in a flow stream. Methods according to certain embodiments include generating a first set of angularly deflected laser beams and a second set of angularly deflected laser beams, propagating the first set of angularly deflected laser beams along a different optical path from the second set of angularly deflected laser beams, combining the first set of angularly deflected laser beams with the second set of angularly deflected laser beams and directing the combined sets of laser beams onto a sample in a flow stream and detecting light from the sample. Systems having a laser, an acousto-optic device and an optical adjustment component configured to generate a first set of angularly deflected laser beams and a second set of angularly deflected laser beams are also described.Type: GrantFiled: April 9, 2021Date of Patent: June 20, 2023Assignee: BECTON, DICKINSON AND COMPANYInventors: Jizuo Zou, Jorge Manzarraga, Eric D. Diebold
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Publication number: 20230053275Abstract: Aspects of the present disclosure include methods for modulating an intensity profile of a laser beam. Methods according to certain embodiments include irradiating an acousto-optic device with a laser to generate an output laser beam having a plurality of angularly deflected laser beams, capturing an image of the output laser beam, determining an intensity profile of the output laser beam along a horizontal axis from the captured image and adjusting one or more parameters of a waveform inputted into the acousto-optic device in response to the determined intensity profile to generate an output laser beam having a modulated intensity profile. Systems having a laser, an acousto-optic device, an imaging sensor and a waveform generator as well as non-transitory computer readable storage medium with instructions for practicing the subject methods are also described.Type: ApplicationFiled: October 27, 2022Publication date: February 16, 2023Inventors: Matthew Bahr, Keegan Owsley, Jizuo Zou
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Publication number: 20230022846Abstract: Aspects of the present disclosure include methods for determining a photodetector gain correction factor for application to flow cytometer data. Methods according to certain embodiments include detecting light with a light detection system across a horizontal axis of a flow stream, generating data signals in a photodetector channel (e.g., an imaging photodetector channel) of the light detection system at a plurality of positions across the flow stream and calculating a detector gain correction factor for each position across the flow stream in response to the generated data signals. Methods also include applying a detector gain correction factor to data signals from a photodetector channel (e.g., non-imaging photodetector channels) to generate adjusted signal intensities. Systems (e.g., particle analyzers) having a light source and a light detection system that includes a photodetector (e.g., an imaging photodetector) for practicing the subject methods are also described.Type: ApplicationFiled: June 24, 2022Publication date: January 26, 2023Inventors: Jizuo Zou, Keegan Owsley, Matthew Bahr
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Patent number: 11513058Abstract: Aspects of the present disclosure include methods for modulating an intensity profile of a laser beam. Methods according to certain embodiments include irradiating an acousto-optic device with a laser to generate an output laser beam having a plurality of angularly deflected laser beams, capturing an image of the output laser beam, determining an intensity profile of the output laser beam along a horizontal axis from the captured image and adjusting one or more parameters of a waveform inputted into the acousto-optic device in response to the determined intensity profile to generate an output laser beam having a modulated intensity profile. Systems having a laser, an acousto-optic device, an imaging sensor and a waveform generator as well as non-transitory computer readable storage medium with instructions for practicing the subject methods are also described.Type: GrantFiled: May 6, 2021Date of Patent: November 29, 2022Assignee: BECTON, DICKINSON AND COMPANYInventors: Matthew Bahr, Keegan Owsley, Jizuo Zou
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LASER LIGHT PROPAGATION SYSTEMS FOR IRRADIATING A SAMPLE IN A FLOW STREAM AND METHODS FOR USING SAME
Publication number: 20220074858Abstract: Aspects of the disclosure include systems for irradiating a sample in a flow stream. Systems according to certain embodiments include a light propagator having a first fiber optic operably coupled to a first laser and configured to receive light from the first laser at a proximal end and to convey the laser light from a distal end to a first position on the flow stream and a second fiber optic operably coupled to a second laser and configured to receive light from the second laser at a proximal end and to convey the laser light from a distal end to a second position on the flow stream. Methods for irradiating a sample in a flow stream with the subject systems and detecting light from two or more positions on irradiated flow stream are also provided.Type: ApplicationFiled: August 12, 2021Publication date: March 10, 2022Inventors: Bing Shan, Jizuo Zou, Svitlana Berezhna, Eric D. Diebold, An-Dien Nguyen, Fedor Ilkov, Mark Dorighi -
Publication number: 20210404943Abstract: Aspects of the disclosure include methods for generating angularly deflected laser beams for irradiating a sample in a flow stream. Methods according to certain embodiments include generating a first set of angularly deflected laser beams and a second set of angularly deflected laser beams, propagating the first set of angularly deflected laser beams along a different optical path from the second set of angularly deflected laser beams, combining the first set of angularly deflected laser beams with the second set of angularly deflected laser beams and directing the combined sets of laser beams onto a sample in a flow stream and detecting light from the sample. Systems having a laser, an acousto-optic device and an optical adjustment component configured to generate a first set of angularly deflected laser beams and a second set of angularly deflected laser beams are also described.Type: ApplicationFiled: April 9, 2021Publication date: December 30, 2021Inventors: Jizuo Zou, Jorge Manzarraga, Eric D. Diebold
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Publication number: 20210364413Abstract: Aspects of the present disclosure include methods for modulating an intensity profile of a laser beam. Methods according to certain embodiments include irradiating an acousto-optic device with a laser to generate an output laser beam having a plurality of angularly deflected laser beams, capturing an image of the output laser beam, determining an intensity profile of the output laser beam along a horizontal axis from the captured image and adjusting one or more parameters of a waveform inputted into the acousto-optic device in response to the determined intensity profile to generate an output laser beam having a modulated intensity profile. Systems having a laser, an acousto-optic device, an imaging sensor and a waveform generator as well as non-transitory computer readable storage medium with instructions for practicing the subject methods are also described.Type: ApplicationFiled: May 6, 2021Publication date: November 25, 2021Inventors: Matthew Bahr, Keegan Owsley, Jizuo Zou
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Publication number: 20210199559Abstract: Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.Type: ApplicationFiled: March 15, 2021Publication date: July 1, 2021Inventors: Jizuo Zou, Matthew Bahr, Eric D. Diebold
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Patent number: 10976236Abstract: Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.Type: GrantFiled: March 12, 2020Date of Patent: April 13, 2021Assignee: Becton, Dickinson and CompanyInventors: Jizuo Zou, Matthew Bahr, Eric D. Diebold
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Publication number: 20200300749Abstract: Light detection systems for measuring light (e.g., in a flow stream) are described. Light detection systems according to embodiments include a light scatter detector, a brightfield photodetector and an optical adjustment component configured to convey light to the light scatter detector and to the brightfield photodetector. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having a light scatter detector, a brightfield photodetector and a beam splitter component are also provided.Type: ApplicationFiled: March 12, 2020Publication date: September 24, 2020Inventors: Jizuo Zou, Matthew Bahr, Eric D. Diebold
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Publication number: 20190324281Abstract: Aspects of the present disclosure include systems with multiple lasers having modified beam profiles. Systems according to certain embodiments include a first laser that produces a first beam of light, a second laser that produces a second beam of light and a beam shaping component that receives the first beam of light and the second beam of light at substantially the same position from different angles of incidence and is configured to generate from the first beam of light and the second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis. Methods for irradiating a sample in a flow stream with the output beam of light are also described. Kits having one or more lasers and a beam shaping component configured to generate from a first beam of light and a second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis are also provided.Type: ApplicationFiled: April 11, 2019Publication date: October 24, 2019Inventors: Eric D. Diebold, Jizuo Zou, Jorge Manzarraga