Patents by Inventor Kengyeh K. Chu

Kengyeh K. Chu 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).

  • Patent number: 11147503
    Abstract: Systems and methods for a tethered optical imaging probe configured to be integrated into an optical system for medical diagnosis are provided. In one configuration, the present disclosure provides a tethered optical imaging probe including a motor arranged within a swallowable capsule. A rotational speed of the motor is actively controlled by a feedback signal.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: October 19, 2021
    Assignee: The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Rohith K. Reddy, Michalina J. Gora, Kengyeh K. Chu, Matthew Beatty, Jing Dong, Emilie Beaulieu-Ouellet
  • Patent number: 11112232
    Abstract: Exemplary apparatus and method are provided for illuminating a sample. With such exemplary apparatus and/or method, it is possible to, using at least one source arrangement, provide at least one first electro-magnetic radiation. Using an optical system of an optics arrangement, it is possible to receive the first electro-magnetic radiation(s), and modifying the at least one first electro-magnetic radiation to be at least one second electro-magnetic radiation so as to be forwarded to the sample. Further, with the optical system, it is possible to extend the at least one second electro-magnetic radiation into or across the sample for a distance of at least 2 times the Raleigh range of a Gaussian beam when the optics arrangement and the sample are stationary with respect to one another. Additionally, using the optical system, it is possible to control a placement of a focus of the at least one second electro-magnetic radiation on or in the sample.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: September 7, 2021
    Assignee: The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Biwei Yin, Kengyeh K. Chu, Barry Vuong
  • Publication number: 20200217642
    Abstract: Exemplary apparatus and method are provided for illuminating a sample. With such exemplary apparatus and/or method, it is possible to, using at least one source arrangement, provide at least one first electro-magnetic radiation. Using an optical system of an optics arrangement, it is possible to receive the first electro-magnetic radiation(s), and modifying the at least one first electro-magnetic radiation to be at least one second electro-magnetic radiation so as to be forwarded to the sample. Further, with the optical system, it is possible to extend the at least one second electro-magnetic radiation into or across the sample for a distance of at least 2 times the Raleigh range of a Gaussian beam when the optics arrangement and the sample are stationary with respect to one another. Additionally, using the optical system, it is possible to control a placement of a focus of the at least one second electro-magnetic radiation on or in the sample.
    Type: Application
    Filed: February 20, 2020
    Publication date: July 9, 2020
    Inventors: Guillermo J. Tearney, Biwei Yin, Kengyeh K. Chu, Barry Vuong
  • Patent number: 10584954
    Abstract: Exemplary apparatus and method are provided for illuminating a sample. With such exemplary apparatus and/or method, it is possible to, using at least one source arrangement, provide at least one first electro-magnetic radiation. Using an optical system of an optics arrangement, it is possible to receive the first electro-magnetic radiation(s), and modifying the at least one first electro-magnetic radiation to be at least one second electro-magnetic radiation so as to be forwarded to the sample. Further, with the optical system, it is possible to extend the at least one second electro-magnetic radiation into or across the sample for a distance of at least 2 times the Raleigh range of a Gaussian beam when the optics arrangement and the sample are stationary with respect to one another. Additionally, using the optical system, it is possible to control a placement of a focus of the at least one second electro-magnetic radiation on or in the sample.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 10, 2020
    Assignee: The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Biwei Yin, Kengyeh K. Chu, Barry Vuong
  • Patent number: 10314491
    Abstract: Optics for apodizing an optical imaging probe beam, and methods for fabricating optics for apodizing an optical imaging probe beam are provided. In some embodiments, optics for apodizing an electrical comprises: an optical fiber; a focusing element coaxially aligned with the optical fiber; an element having a cylindrical bore and an angled reflective surface, wherein a first portion of a beam focused by the focusing element enters the cylindrical bore and a second portion of the beam is reflected at an angle to produce a beam with a generally annular-shaped profile.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 11, 2019
    Assignee: The General Hospital Corporation
    Inventors: Dongyao Cui, Kengyeh K. Chu, Guillermo J. Tearney
  • Publication number: 20180259317
    Abstract: Exemplary apparatus and method are provided for illuminating a sample. With such exemplary apparatus and/or method, it is possible to, using at least one source arrangement, provide at least one first electro-magnetic radiation. Using an optical system of an optics arrangement, it is possible to receive the first electro-magnetic radiation(s), and modifying the at least one first electro-magnetic radiation to be at least one second electro-magnetic radiation so as to be forwarded to the sample. Further, with the optical system, it is possible to extend the at least one second electro-magnetic radiation into or across the sample for a distance of at least 2 times the Raleigh range of a Gaussian beam when the optics arrangement and the sample are stationary with respect to one another. Additionally, using the optical system, it is possible to control a placement of a focus of the at least one second electro-magnetic radiation on or in the sample.
    Type: Application
    Filed: September 16, 2016
    Publication date: September 13, 2018
    Inventors: Guillermo J. Tearney, Biwei Yin, Kengyeh K. Chu, Barry Vuong
  • Publication number: 20180228374
    Abstract: Optics for apodizing an optical imaging probe beam, and methods for fabricating optics for apodizing an optical imaging probe beam are provided. In some embodiments, optics for apodizing an electrical comprises: an optical fiber; a focusing element coaxially aligned with the optical fiber; an element having a cylindrical bore and an angled reflective surface, wherein a first portion of a beam focused by the focusing element enters the cylindrical bore and a second portion of the beam is reflected at an angle to produce a beam with a generally annular-shaped profile.
    Type: Application
    Filed: February 12, 2018
    Publication date: August 16, 2018
    Inventors: Dongyao Cui, Kengyeh K. Chu, Guillermo J. Tearney
  • Publication number: 20180160965
    Abstract: Systems and methods for a tethered optical imaging probe configured to be integrated into an optical system for medical diagnosis are provided. In one configuration, the present disclosure provides a tethered optical imaging probe including a motor arranged within a swallowable capsule. A rotational speed of the motor is actively controlled by a feedback signal.
    Type: Application
    Filed: January 29, 2018
    Publication date: June 14, 2018
    Inventors: Guillermo J. Tearney, Rohith K. Reddy, Michalina J. Gora, Kengyeh K. Chu, Matthew Beatty, Jing Dong, Emilie Beaulieu-Ouellet
  • Patent number: 8310532
    Abstract: A first image data set of the real-world object is received at a processor where the real-world object was illuminated with substantially uniform illumination. A second image data set of the real-world object is received at the processor where the real-world object was illuminated with substantially structured illumination. A high pass filter is applied to the first-image data set to remove out-of-focus content and retrieve high-frequency in-focus content. The local contrast of the second-image data set is determined producing a low resolution local contrast data set. The local contrast provides a low resolution estimate of the in-focus content in the first-image data set. A low pass filter is applied to the estimated low resolution in-focus data set, thus making its frequency information complementary to the high-frequency in-focus data set. The low and high frequency in-focus data sets are combined to produce an optically-sectioned data set of the real-world object.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 13, 2012
    Assignee: Trustees of Boston University
    Inventors: Jerome Mertz, Daryl Lim, Kengyeh K. Chu
  • Publication number: 20110109736
    Abstract: A first image data set of the real-world object is received at a processor where the real-world object was illuminated with substantially uniform illumination. A second image data set of the real-world object is received at the processor where the real-world object was illuminated with substantially structured illumination. A high pass filter is applied to the first-image data set to remove out-of-focus content and retrieve high-frequency in-focus content. The local contrast of the second-image data set is determined producing a low resolution local contrast data set. The local contrast provides a low resolution estimate of the in-focus content in the first-image data set. A low pass filter is applied to the estimated low resolution in-focus data set, thus making its frequency information complementary to the high-frequency in-focus data set. The low and high frequency in-focus data sets are combined to produce an optically-sectioned data set of the real-world object.
    Type: Application
    Filed: June 3, 2009
    Publication date: May 12, 2011
    Applicant: TRUSTEES OF BOSTON UNIVERSITY
    Inventors: Jerome Mertz, Daryl Lim, Kengyeh K. Chu