Patents by Inventor Mohamed Tarek El-Haddad
Mohamed Tarek El-Haddad 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: 11867900Abstract: An eye-tracking method includes enabling at least one light source of an array of light sources to emit non-visible light to illuminate an eye. The method also includes obtaining at least one image of the eye while the at least one light source is enabled. A position of the eye may then be determined based on a position of the at least one light source within the array of light sources in response to determining that the at least one image indicates a bright pupil condition when the at least one light source was enabled.Type: GrantFiled: April 9, 2020Date of Patent: January 9, 2024Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad
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Patent number: 11768378Abstract: A plano-concave optical layer is fabricated based on an optical-mechanical fit profile. A concave-side of the plano-concave optical layer and a base curvature provide an optical power that matches the optical power from prescription lenses of eyeglasses.Type: GrantFiled: January 15, 2020Date of Patent: September 26, 2023Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad, Ruobing Qian, Byron Taylor
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Publication number: 20230210367Abstract: A head mounted display includes a display layer, an array of light sources, a first optical combiner, and a second optical combiner. The array of light sources are configured to be selectively enabled to emit non-visible light to illuminate a fundus of an eye. The first optical combiner is configured to receive reflected non-visible light that is reflected by the eye, direct a first component of the reflected non-visible light to a first camera to generate an image of the eye, and pass a second component of the reflected non-visible light. The second optical combiner is configured to receive a fundus imaging light responsive to the second component of the reflected non-visible light, and to direct the fundus imaging light to a second camera to generate an image of the fundus.Type: ApplicationFiled: February 27, 2023Publication date: July 6, 2023Inventors: Robin Sharma, Mohamed Tarek El-Haddad
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Patent number: 11642018Abstract: A volumetric depth image is captured. The volumetric depth image includes a front surface of a prescription lens, a back surface of the prescription lens, and a cornea of an eye of a wearer of the prescription lens. Lens-to-eye data is determined from the volumetric depth image. The lens-to-eye data includes measurements of the prescription lens with respect to the eye. A three-dimensional (3D) optical-mechanical fit profile is generated or the wearer based on the lens-to-eye data.Type: GrantFiled: January 15, 2020Date of Patent: May 9, 2023Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad, Ruobing Qian, Byron Taylor
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Patent number: 11617508Abstract: A fundus illumination system includes an array of light sources, a first optical combiner, and a second optical combiner. The array of light sources are configured to be selectively enabled to emit non-visible light to illuminate a fundus of an eye. The first optical combiner is configured to receive reflected non-visible light that is reflected by the eye, direct a first component of the reflected non-visible light to a first camera to generate an image of the eye, and pass a second component of the reflected non-visible light. The second optical combiner is configured to receive a fundus imaging light responsive to the second component of the reflected non-visible light, and to direct the fundus imaging light to a second camera to generate an image of the fundus.Type: GrantFiled: April 9, 2020Date of Patent: April 4, 2023Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad
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Patent number: 11614638Abstract: A distortion profile is based on user lens data and a selected optical-mechanical profile of a selected head mounted device. The user lens data is associated with prescription lenses worn by the user. A prescription optical layer is fabricated based on the distortion profile for the selected head mounted device.Type: GrantFiled: January 15, 2020Date of Patent: March 28, 2023Assignee: Meta Platforms Technologies, LLCInventors: Robin Sharma, Mohamed Tarek El-Haddad, Ruobing Qian, Byron Taylor
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Patent number: 11583179Abstract: Sensor data is captured with a sensor. The sensor data includes a lens-position of a prescription lens relative to a reference point of an optical coherence tomography (OCT) system. A mirror of a reference arm of the OCT system is positioned at an optical pathlength between an eye region of the prescription lens based at least in part on the sensor data. An OCT signal is generated while the mirror is positioned at the optical pathlength. At least one depth profile is generated that includes the prescription lens and the eye region.Type: GrantFiled: July 2, 2020Date of Patent: February 21, 2023Assignee: Meta Platforms Technologies, LLCInventors: Ruobing Qian, Mohamed Tarek El-Haddad, Robin Sharma
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Publication number: 20210267450Abstract: A fundus illumination system includes an array of light sources, a first optical combiner, and a second optical combiner. The array of light sources are configured to be selectively enabled to emit non-visible light to illuminate a fundus of an eye. The first optical combiner is configured to receive reflected non-visible light that is reflected by the eye, direct a first component of the reflected non-visible light to a first camera to generate an image of the eye, and pass a second component of the reflected non-visible light. The second optical combiner is configured to receive a fundus imaging light responsive to the second component of the reflected non-visible light, and to direct the fundus imaging light to a second camera to generate an image of the fundus.Type: ApplicationFiled: April 9, 2020Publication date: September 2, 2021Inventors: Robin Sharma, Mohamed Tarek El-Haddad
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Publication number: 20210271317Abstract: An eye-tracking method includes enabling at least one light source of an array of light sources to emit non-visible light to illuminate an eye. The method also includes obtaining at least one image of the eye while the at least one light source is enabled. A position of the eye may then be determined based on a position of the at least one light source within the array of light sources in response to determining that the at least one image indicates a bright pupil condition when the at least one light source was enabled.Type: ApplicationFiled: April 9, 2020Publication date: September 2, 2021Inventors: Robin Sharma, Mohamed Tarek El-Haddad
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Publication number: 20210259541Abstract: Sensor data is captured with a sensor. The sensor data includes a lens-position of a prescription lens relative to a reference point of an optical coherence tomography (OCT) system. A mirror of a reference arm of the OCT system is positioned at an optical pathlength between an eye region of the prescription lens based at least in part on the sensor data. An OCT signal is generated while the mirror is positioned at the optical pathlength. At least one depth profile is generated that includes the prescription lens and the eye region.Type: ApplicationFiled: July 2, 2020Publication date: August 26, 2021Inventors: Ruobing Qian, Mohamed Tarek El-Haddad, Robin Sharma
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Publication number: 20210244273Abstract: A fundus illumination system includes an eye-tracking system, an illumination source, a lens system, and a control module. The eye-tracking system is configured to track movements of an eye and the illumination source includes an array of light sources that selectively emit illumination light. The lens system is disposed between the illumination source and the eye to direct the illumination light to illuminate a fundus of the eye. The control module is communicatively coupled to the eye-tracking system and the illumination source, and selectively enables at least one light source of the array of light sources based on the movements of the eye to maintain illumination of the fundus.Type: ApplicationFiled: October 23, 2020Publication date: August 12, 2021Inventors: Robin Sharma, Mohamed Tarek El-Haddad
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Patent number: 11044460Abstract: A three-dimensional object imager uses infrared light at different wavelengths to triangulate depth information of the object from wavelength-dependent detection of the infrared image of the object. The depth information is obtained by determining wavelength of infrared light impinging on different pixels of the array. The wavelength may be determined by breaking each pixel into a plurality of sub-pixels, each sub-pixel having its own spectral selectivity to light at different infrared wavelength. For eye imaging or eye tracking applications, this enables the preservation of an unobstructed field of view of the eye while obtaining real-time, dynamic information about eye position and orientation in an non-intrusive, inconspicuous manner.Type: GrantFiled: May 1, 2019Date of Patent: June 22, 2021Assignee: FACEBOOK TECHNOLOGIES, LLCInventors: Babak Amirsolaimani, Mohamed Tarek El-Haddad