Patents by Inventor Junzhong Liang

Junzhong Liang 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).

  • Publication number: 20170245758
    Abstract: The present disclosure provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better. Methods, devices and systems for remote measurement of refraction by an examiner away from the measurement system are also disclosed.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Applicant: PERFECT VISION TECHNOLOGY (HK) LTD.
    Inventor: Junzhong Liang
  • Patent number: 9649032
    Abstract: The present disclosure provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better. Methods, devices and systems for remote measurement of refraction by an examiner away from the measurement system are also disclosed.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: May 16, 2017
    Assignee: Perfect Vision Technology (HK) Ltd.
    Inventor: Junzhong Liang
  • Publication number: 20160242641
    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Inventor: Junzhong Liang
  • Patent number: 9345399
    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 24, 2016
    Assignee: Perfect Vision Technology (HK) Ltd.
    Inventor: Junzhong Liang
  • Patent number: 9277863
    Abstract: The present invention provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 8, 2016
    Assignee: Perfect Vision Technology (HK) Ltd.
    Inventor: Junzhong Liang
  • Publication number: 20150305619
    Abstract: The present disclosure provides methods, devices, and systems for automated measured correction of the eyes and provision of sunglasses and eyeglasses for individuals, including individuals with a visual acuity of 20/20 or better. Methods, devices and systems for remote measurement of refraction by an examiner away from the measurement system are also disclosed.
    Type: Application
    Filed: November 25, 2013
    Publication date: October 29, 2015
    Inventor: Junzhong Liang
  • Patent number: 9025727
    Abstract: A method, code and system for planning the treatment a lesion on or adjacent to the retina of an eye of a patient are disclosed. There is first established at least two beam paths along which x-radiation is to be directed at the retinal lesion. Based on the known spectral and intensity characteristics of the beam, a total treatment time for irradiation along each beam paths is determined. From the coordinates of the optic nerve in the aligned eye position, there is determined the extent and duration of eye movement away from the aligned patient-eye position in a direction that moves the patient's optic nerve toward the irradiation beam that will be allowed during treatment, while still maintaining the radiation dose at the patient optic nerve below a predetermined dose level.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 5, 2015
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Junzhong Liang
  • Patent number: 8923479
    Abstract: Embodiments provide method and systems for determining or measuring objective eye alignment in an external-coordinate system so as to define a reference axis. Additional embodiments provide a method and system of aligning an objectively determined reference axis of the eye in a selected relationship to a therapeutic axis of an ophthalmic therapeutic apparatus and/or a diagnostic axis of an ophthalmic diagnostic apparatus. Embodiments provide a method and system for planning an ophthalmic treatment procedure based on objective eye alignment in an external-coordinate system so as to define a reference axis of an eye to be treated. The reference axis may be used to position a therapeutic energy component, for example, an orthovoltage X-ray treatment device, e.g., positioned to provide treatment to tissue on the retina, such as the macula.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 30, 2014
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Matt Herron, Junzhong Liang
  • Publication number: 20140368795
    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 18, 2014
    Inventor: Junzhong Liang
  • Patent number: 8858541
    Abstract: Presbyopia in a patient's eye is treated by inducing spherical aberration in the central section of the pupil, while the peripheral section of the pupil is treated in a manner other than the central section of the pupil. For example, the peripheral section of the pupil may remain untreated, or high-order aberration may be controlled, and/or a second area of spherical aberration may be provided with different focus power.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: October 14, 2014
    Inventor: Junzhong Liang
  • Patent number: 8848869
    Abstract: Embodiments provide method and systems for determining alignment of a patient's body part, such as an eye, in an external coordinate system of a treatment or diagnostic device, such as a radiotherapy device, so as to define a reference axis for guiding device operation. Additional embodiments provide image-based methods and systems for aligning, tracking and monitoring motion of a body part and a treatment target in relation to a radiation beam axis. Particular ophthalmic embodiments provide method and systems including an eye-contact guide device and imaging system for aligning and tracking motion of an eye and ocular treatment target in relation to an orthovoltage X-ray beam axis, so as to monitor application of radiation to a lesion, such as a macular lesion of the retina.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 30, 2014
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Matt Herron, Igor Koruga, Junzhong Liang
  • Patent number: 8827448
    Abstract: Methods and devices are provided to obtain refractive correction with superior visual acuity (e.g., 20/10) by achieving an astigmatism-free customized refractive correction. The astigmatism-free customized refractive correction involves obtaining an objective and precise measurement of cylindrical power in a resolution between 0.01 D and 0.10 D in an eye using an objective aberrometer, reliably relating the cylindrical axis obtained from the objective aberrometer to that in a phoroptor, determining an optimized focus error of an eye through subjective refraction with a phoroptor, generating a customized refraction by combining the objective measured cylindrical power, the objective measured cylindrical axis, and the subjectively measured focus power, fabricating a custom lens with a tolerance finer than 0.09 D based on the generated customized refraction, and delivering an ophthalmic lens that can provide an astigmatism-free refractive correction for an eye.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: September 9, 2014
    Assignee: Perfect Vision Technology (HK) Ltd.
    Inventor: Junzhong Liang
  • Publication number: 20140126700
    Abstract: Embodiments provide method and systems for determining or measuring objective eye alignment in an external-coordinate system so as to define a reference axis. Additional embodiments provide a method and system of aligning an objectively determined reference axis of the eye in a selected relationship to a therapeutic axis of an ophthalmic therapeutic apparatus and/or a diagnostic axis of an ophthalmic diagnostic apparatus. Embodiments provide a method and system for planning an ophthalmic treatment procedure based on objective eye alignment in an external-coordinate system so as to define a reference axis of an eye to be treated. The reference axis may be used to position a therapeutic energy component, for example, an orthovoltage X-ray treatment device, e.g., positioned to provide treatment to tissue on the retina, such as the macula.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Matt Herron, Junzhong Liang
  • Publication number: 20140037063
    Abstract: A method, code and system for planning the treatment a lesion on or adjacent to the retina of an eye of a patient are disclosed. There is first established at least two beam paths along which x-radiation is to be directed at the retinal lesion. Based on the known spectral and intensity characteristics of the beam, a total treatment time for irradiation along each beam paths is determined. From the coordinates of the optic nerve in the aligned eye position, there is determined the extent and duration of eye movement away from the aligned patient-eye position in a direction that moves the patient's optic nerve toward the irradiation beam that will be allowed during treatment, while still maintaining the radiation dose at the patient optic nerve below a predetermined dose level.
    Type: Application
    Filed: July 23, 2013
    Publication date: February 6, 2014
    Applicant: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Junzhong Liang
  • Patent number: 8630388
    Abstract: Embodiments provide method and systems for determining or measuring objective eye alignment in an external-coordinate system so as to define a reference axis. Additional embodiments provide a method and system of aligning an objectively determined reference axis of the eye in a selected relationship to a therapeutic axis of an ophthalmic therapeutic apparatus and/or a diagnostic axis of an ophthalmic diagnostic apparatus. Embodiments provide a method and system for planning an ophthalmic treatment procedure based on objective eye alignment in an external-coordinate system so as to define a reference axis of an eye to be treated. The reference axis may be used to position a therapeutic energy component, for example, an orthovoltage X-ray treatment device, e.g., positioned to provide treatment to tissue on the retina, such as the macula.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: January 14, 2014
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Matt Herron, Junzhong Liang
  • Publication number: 20130324983
    Abstract: Presbyopia in a patient's eye is treated by inducing spherical aberration in the central section of the pupil, while the peripheral section of the pupil is treated in a manner other than the central section of the pupil. For example, the peripheral section of the pupil may remain untreated, or high-order aberration may be controlled, and/or a second area of spherical aberration may be provided with different focus power.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Inventor: Junzhong Liang
  • Publication number: 20130315374
    Abstract: Embodiments provide method and systems for determining alignment of a patient's body part, such as an eye, in an external coordinate system of a treatment or diagnostic device, such as a radiotherapy device, so as to define a reference axis for guiding device operation. Additional embodiments provide image-based methods and systems for aligning, tracking and monitoring motion of a body part and a treatment target in relation to a radiation beam axis. Particular ophthalmic embodiments provide method and systems including an eye-contact guide device and imaging system for aligning and tracking motion of an eye and ocular treatment target in relation to an orthovoltage X-ray beam axis, so as to monitor application of radiation to a lesion, such as a macular lesion of the retina.
    Type: Application
    Filed: August 2, 2013
    Publication date: November 28, 2013
    Applicant: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Matt Herron, Igor Koruga, Junzhong Liang
  • Patent number: 8529559
    Abstract: Presbyopia in a patient's eye is treated by inducing spherical aberration in the central section of the pupil, while the peripheral section of the pupil is treated in a manner other than the central section of the pupil. For example, the peripheral section of the pupil may remain untreated, or high-order aberration may be controlled, and/or a second area of spherical aberration may be provided with different focus power.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: September 10, 2013
    Inventor: Junzhong Liang
  • Patent number: 8503609
    Abstract: Embodiments provide method and systems for determining alignment of a patient's body part, such as an eye, in an external coordinate system of a treatment or diagnostic device, such as a radiotherapy device, so as to define a reference axis for guiding device operation. Additional embodiments provide image-based methods and systems for aligning, tracking and monitoring motion of a body part and a treatment target in relation to a radiation beam axis. Particular ophthalmic embodiments provide method and systems including an eye-contact guide device and imaging system for aligning and tracking motion of an eye and ocular treatment target in relation to an orthovoltage X-ray beam axis, so as to monitor application of radiation to a lesion, such as a macular lesion of the retina.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 6, 2013
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Matt Herron, Igor Koruga, Junzhong Liang
  • Patent number: 8494116
    Abstract: A method, code and system for planning the treatment a lesion on or adjacent to the retina of an eye of a patient are disclosed. There is first established at least two beam paths along which x-radiation is to be directed at the retinal lesion. Based on the known spectral and intensity characteristics of the beam, a total treatment time for irradiation along each beam paths is determined. From the coordinates of the optic nerve in the aligned eye position, there is determined the extent and duration of eye movement away from the aligned patient-eye position in a direction that moves the patient's optic nerve toward the irradiation beam that will be allowed during treatment, while still maintaining the radiation dose at the patient optic nerve below a predetermined dose level.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: July 23, 2013
    Assignee: Oraya Therapeutics, Inc.
    Inventors: Michael Gertner, Mark Arnoldussen, Erik Chell, Steven D. Hansen, Junzhong Liang