Patents Assigned to Notal Vision Ltd.
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Publication number: 20230277126Abstract: Systems and relative method of monitoring the state of a subject’s retinal disease employ remote based OCT imaging of a subject’s retina. A method includes receiving optical coherence tomography (OCT) image data of a retina of a subject for each of a series of OCT imaging sessions of the retina. The OCT image data of the retina is processed to determine a series of measured extent values. Each of the one or more measured extent values is indicative of a respective extent of the retinal disease.Type: ApplicationFiled: April 10, 2023Publication date: September 7, 2023Applicant: Notal Vision Ltd.Inventors: Amit Pascal, Kester Nahen, Hanoch Gideon Benyamini, Omer Rafaeli, Yair Alster, Moshe Havilio, Yael Alon, Elad Bergman
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Publication number: 20230270327Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user’s retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.Type: ApplicationFiled: January 9, 2023Publication date: August 31, 2023Applicant: Notal Vision Ltd.Inventors: Amit Pascal, Gidon Goren-Gratzyani
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Patent number: 11723536Abstract: Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.Type: GrantFiled: June 28, 2022Date of Patent: August 15, 2023Assignee: Notal Vision, Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Publication number: 20230101855Abstract: Retinal imaging systems and related methods employ a user specific approach for controlling the reference arm length in an optical coherence tomography (OCT) imaging device. A method includes restraining a user's head relative to an OCT imaging device. A reference arm length adjustment module is controlled to vary a reference arm length to search a user specific range of reference arm lengths to identify a reference arm length for which the OCT image detector produces an OCT signal corresponding to the retina of the user. The user specific range of reference arm lengths covers a smaller range of reference arm lengths than a reference arm length adjustment range of the reference arm length adjustment module.Type: ApplicationFiled: August 31, 2022Publication date: March 30, 2023Applicant: Notal Vision Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 11564564Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.Type: GrantFiled: April 13, 2020Date of Patent: January 31, 2023Assignee: Notal Vision, Ltd.Inventors: Amit Pascal, Gidon Goren-Gratzyani
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Publication number: 20220395177Abstract: Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.Type: ApplicationFiled: June 28, 2022Publication date: December 15, 2022Applicant: Notal Vision, Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 11464408Abstract: Retinal imaging systems and related methods employ a user specific approach for controlling the reference arm length in an optical coherence tomography (OCT) imaging device. A method includes restraining a user's head relative to an OCT imaging device. A reference arm length adjustment module is controlled to vary a reference arm length to search a user specific range of reference arm lengths to identify a reference arm length for which the OCT image detector produces an OCT signal corresponding to the retina of the user. The user specific range of reference arm lengths covers a smaller range of reference arm lengths than a reference arm length adjustment range of the reference arm length adjustment module.Type: GrantFiled: February 26, 2020Date of Patent: October 11, 2022Assignee: Notal Vision Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 11389061Abstract: Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.Type: GrantFiled: April 24, 2020Date of Patent: July 19, 2022Assignee: Notal Vision, Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Publication number: 20210369110Abstract: Ophthalmic imaging devices and related methods employ self-alignment of a user with an optical axis of the imaging device. An ophthalmic imaging device includes a retinal imaging assembly, a housing assembly, and a viewer assembly. The retinal imaging assembly has an optical axis. The retinal imaging assembly is attached to the housing. The housing assembly is configured to rest on a horizontal surface during operation of the retinal imaging assembly. The optical axis is oriented at an angle from the horizontal surface when the housing assembly rests on the horizontal surface. The viewer assembly is coupled with the housing assembly. The viewer assembly includes an interface surface shaped for engagement with each head of a plurality of different user's and to accommodate repositioning of the head to align a pupil of the user with the optical axis.Type: ApplicationFiled: June 11, 2021Publication date: December 2, 2021Applicant: Notal Vision Ltd.Inventors: Omer Rafaeli, Muki Rapp, Hanoch Gideon Benyamini, Yair Alster, Eitan Sharif, Amit Pascal
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Patent number: 11058299Abstract: Ophthalmic imaging devices and related methods employ self-alignment of a user with an optical axis of the imaging device. An ophthalmic imaging device includes an imaging assembly having an optical axis, a housing assembly, and a viewer assembly. The housing assembly is configured to rest on a horizontal surface during operation of the imaging assembly. The optical axis is oriented at an angle from 45 degrees to 85 degrees from the horizontal surface. The viewer assembly includes an interface surface shaped to engage a user's head to stabilize a position and an orientation of the user's head relative to the optical axis. The viewer assembly accommodates different positions and/or orientations of the user's head relative to the optical axis so as to enable alignment, by the user, of one of the user's eyes with the optical axis.Type: GrantFiled: May 6, 2019Date of Patent: July 13, 2021Assignee: Notal Vision Ltd.Inventors: Omer Rafaeli, Muki Rapp, Hanoch Gideon Benyamini, Yair Alster, Eitan Sharif, Amit Pascal
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Publication number: 20200390325Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.Type: ApplicationFiled: April 13, 2020Publication date: December 17, 2020Applicant: Notal Vision Ltd.Inventors: Amit Pascal, Gidon Goren-Gratzyani
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Publication number: 20200260949Abstract: Retinal imaging systems and related methods employ a user specific approach for controlling the reference arm length in an optical coherence tomography (OCT) imaging device. A method includes restraining a user's head relative to an OCT imaging device. A reference arm length adjustment module is controlled to vary a reference arm length to search a user specific range of reference arm lengths to identify a reference arm length for which the OCT image detector produces an OCT signal corresponding to the retina of the user. The user specific range of reference arm lengths covers a smaller range of reference arm lengths than a reference arm length adjustment range of the reference arm length adjustment module.Type: ApplicationFiled: February 26, 2020Publication date: August 20, 2020Applicant: Notal Vision Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Publication number: 20200245867Abstract: Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.Type: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Applicant: Notal Vision, Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 10653311Abstract: An optical coherence tomography (OCT) system for imaging a retina applies a user specific focus correction to focus a sample arm light beam on the user's retina. An OCT image detector generates an OCT signal. A control unit monitors the OCT signal, controls a reference arm optical path length adjustment mechanism to identify a length of the reference arm optical path for which the OCT signal corresponds to an OCT image of the retina, and varies an operational parameter of the sample arm light beam focus mechanism over a range, while maintaining the length of the reference arm optical path for which the OCT signal corresponds to the OCT image of the retina, to identify a focus correction for the user, based on the OCT signal, for application to the sample arm light beam.Type: GrantFiled: June 12, 2019Date of Patent: May 19, 2020Assignee: NOTAL VISION LTD.Inventors: Amit Pascal, Gidon Goren-Gratzyani
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Patent number: 10653314Abstract: Ophthalmic imaging systems and related methods provide pseudo feedback to aid a user in aligning the user's eye with an optical axis of the imaging system. An ophthalmic imaging system includes an ophthalmic imaging device having an optical axis, a display device, an eye camera, and a control unit. The display device displays a fixation target viewable by the user. The eye camera images the eye to generate eye image data. The control unit processes the eye image data to determine a position of the eye relative to the optical axis, processes the position of the eye relative to the optical axis to generate a pseudo position of the eye relative to the optical axis, and causes the display device to display an indication that provides feedback to the user that the eye is located at the pseudo position of the eye relative to the optical axis.Type: GrantFiled: May 29, 2019Date of Patent: May 19, 2020Assignee: NOTAL VISION LTD.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 10595722Abstract: Retinal imaging systems and related methods employ a user specific approach for controlling the reference arm length in an optical coherence tomography (OCT) imaging device. A method includes restraining a user's head relative to an OCT imaging device. A reference arm length adjustment module is controlled to vary a reference arm length to search a user specific range of reference arm lengths to identify a reference arm length for which the OCT image detector produces an OCT signal corresponding to the retina of the user. The user specific range of reference arm lengths covers a smaller range of reference arm lengths than a reference arm length adjustment range of the reference arm length adjustment module.Type: GrantFiled: May 28, 2019Date of Patent: March 24, 2020Assignee: Notal Vision Ltd.Inventors: Amit Pascal, Omer Rafaeli, Yair Alster, Gidon Goren-Gratzyani
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Patent number: 8079710Abstract: An ophthalmic apparatus exhibiting a first position and a second position related by a rotation of 180° about a longitudinal axis. Automatic detection of the position is preferably provided, and the results of the detection are communicated to a computing unit portion of the ophthalmic apparatus. The ophthalmic apparatus exhibits: a first formation for receiving a user's head in the first position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the second position; and a second formation for receiving a user's head in the second position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the first position.Type: GrantFiled: January 10, 2008Date of Patent: December 20, 2011Assignee: Notal Vision Ltd.Inventors: Gideon Hanoch Benyamini, Alon Goldenberg, Omer Rafaely, Yair Mandelstam-Manor, Elisha Avraham Tal, Eitan Sharif
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Publication number: 20090180074Abstract: An ophthalmic apparatus exhibiting a first position and a second position related by a rotation of 180° about a longitudinal axis. Automatic detection of the position is preferably provided, and the results of the detection are communicated to a computing unit portion of the ophthalmic apparatus. The ophthalmic apparatus exhibits: a first formation for receiving a user's head in the first position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the second position; and a second formation for receiving a user's head in the second position, which is in one embodiment a generally curved formation approximating the shape of the user's lower forehead preferably with an indent portion for receiving the user's nose when the ophthalmic apparatus in the first position.Type: ApplicationFiled: January 10, 2008Publication date: July 16, 2009Applicant: NOTAL VISION LTD.Inventors: Gideon Hanoch BENYAMINI, Alon GOLDENBERG, Omer RAFAELY, Yair MANDELSTAM-MANOR
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Publication number: 20070121070Abstract: A method of providing an eye diagnosis. The method includes displaying stimuli to a patient, receiving indications of locations in which the stimuli were perceived by the patient, analyzing the spatial relationship between at least some of the received indicated locations and classifying the patient with regard to a retinal related disease, at least partially based on the spatial analysis.Type: ApplicationFiled: May 5, 2004Publication date: May 31, 2007Applicant: Notal Vision Ltd.Inventors: Yair Alster, Omer Rafaeli, Edward Elikhis
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Publication number: 20050122477Abstract: Methods and a device comprising a controller/processor unit (664), a visual test-pattern unit (660), a competing sensory stimuli generating unit (662), a user input device (666), an ouput device (668) and a storage unit (670) for detecting eye disease and for assessing the clinical stage of an eye disease in an individual is disclosed. The methods include projecting test patterns onto the retina of a tested eye and subjecting the individual to a competing sensory stimuli. The competing stimuli may be of various different sensory modalities including visual, auditory, or other sensory modalities. If the individual perceives a difference in at least one localized part of the perceived image of a test pattern as compared to a predefined reference pattern, the individual provides a response indicative of the difference or differences. The responses are processed to assess the severity of eye disease if a disease is detected, or to determine the clinical stage of a detected eye disease.Type: ApplicationFiled: February 19, 2003Publication date: June 9, 2005Applicant: Notal Vision Ltd.Inventors: Yair Alster, Omer Rafaeli, Barak Azmon