Patents by Inventor Nathaniel Golshan
Nathaniel Golshan 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: 20240036196Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.Type: ApplicationFiled: October 16, 2023Publication date: February 1, 2024Inventors: Pierre-Yves Droz, David Neil Hutchison, James Dunphy, Nathaniel Golshan, Ralph Hamilton Shepard
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Patent number: 11867808Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.Type: GrantFiled: November 7, 2022Date of Patent: January 9, 2024Assignee: Waymo LLCInventors: Pierre-Yves Droz, David Neil Hutchison, James Dunphy, Nathaniel Golshan, Ralph Hamilton Shepard
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Publication number: 20230417880Abstract: One example system includes a light source that emits light. The system also includes a waveguide that guides the emitted light from a first side of the waveguide toward a second side of the waveguide opposite the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. At least a portion of the reflected light propagates out of the waveguide toward a scene. The system also includes a light detector, and a lens that focuses light from the scene toward the waveguide and the light detector.Type: ApplicationFiled: September 8, 2023Publication date: December 28, 2023Inventors: Pierre-Yves Droz, David Neil Hutchison, Ralph Hamilton Shepard, Nathaniel Golshan
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Patent number: 11802942Abstract: One example system includes a light source that emits light. The system also includes a waveguide that guides the emitted light from a first side of the waveguide toward a second side of the waveguide opposite the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. At least a portion of the reflected light propagates out of the waveguide toward a scene. The system also includes a light detector, and a lens that focuses light from the scene toward the waveguide and the light detector.Type: GrantFiled: December 29, 2020Date of Patent: October 31, 2023Assignee: Waymo LLCInventors: Pierre-Yves Droz, David Neil Hutchison, Ralph Hamilton Shepard, Nathaniel Golshan
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Publication number: 20230055071Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.Type: ApplicationFiled: November 7, 2022Publication date: February 23, 2023Inventors: Pierre-Yves Droz, David Neil Hutchison, James Dunphy, Nathaniel Golshan, Ralph Hamilton Shepard
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Patent number: 11520044Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.Type: GrantFiled: September 25, 2018Date of Patent: December 6, 2022Assignee: Waymo LLCInventors: Pierre-Yves Droz, David Neil Hutchison, James Dunphy, Nathaniel Golshan, Ralph Hamilton Shepard
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Publication number: 20220082660Abstract: Example embodiments relate to light detection and ranging (lidar) devices having a light-guide manifold. An example lidar device includes a transmit subsystem. The transmit subsystem includes a light emitter. The transmit subsystem also includes a light-guide manifold optically coupled to the light emitter. Further, the transmit subsystem includes a telecentric lens assembly optically coupled to the light-guide manifold. The lidar device also includes a receive subsystem. The receive subsystem includes the telecentric lens assembly. The receive subsystem also includes an aperture plate having an aperture defined therein. The aperture plate is positioned at a focal plane of the telecentric lens assembly. Further, the receive subsystem includes a silicon photomultiplier (SiPM) positioned to receive light traveling through the aperture.Type: ApplicationFiled: December 15, 2020Publication date: March 17, 2022Inventors: Pierre-Yves Droz, Ralph H. Shepard, Augusto Tazzoli, David Hutchison, David Schleuning, Nathaniel Golshan, Nathaniel Quillin, Andrew Abo, Caner Onal, Michael Tom, Robert Lockwood, Kelvin Kwong, Daiwei Li, Drew Ulrich, Simon Ellgas, Chandra Kakani, Erin Eppard, Samuel Lenius, Justin Andrade, James Dunphy
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Publication number: 20210149027Abstract: One example system includes a light source that emits light. The system also includes a waveguide that guides the emitted light from a first side of the waveguide toward a second side of the waveguide opposite the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. At least a portion of the reflected light propagates out of the waveguide toward a scene. The system also includes a light detector, and a lens that focuses light from the scene toward the waveguide and the light detector.Type: ApplicationFiled: December 29, 2020Publication date: May 20, 2021Inventors: Pierre-Yves Droz, David Neil Hutchison, Ralph Hamilton Shepard, Nathaniel Golshan
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Patent number: 10890650Abstract: One example system includes a light source that emits light. The system also includes a waveguide that guides the emitted light from a first side of the waveguide toward a second side of the waveguide opposite the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. At least a portion of the reflected light propagates out of the waveguide toward a scene. The system also includes a light detector, and a lens that focuses light from the scene toward the waveguide and the light detector.Type: GrantFiled: September 5, 2017Date of Patent: January 12, 2021Assignee: Waymo LLCInventors: Pierre-Yves Droz, David Neil Hutchison, Ralph Hamilton Shepard, Nathaniel Golshan
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Patent number: 10746945Abstract: The present disclosure relates to systems and methods directed to alignment of light-emitting devices. An example method includes coupling a support substrate to a light guide assembly. The support substrate includes a plurality of elongate structures and a plurality of laser diodes. Each laser diode of the plurality of laser diodes is coupled to a respective elongate structure of the plurality of elongate structures. The method also includes causing a given laser diode of the plurality of laser diodes to emit light toward the light guide assembly. The light guide assembly includes a light guide manifold configured to guide at least a portion of the emitted light as transmitted light. The method additionally includes comparing at least one optical characteristic of the transmitted light to a desired optical characteristic and, based on the comparison, adjusting a position of the given laser diode by adjusting the respective elongate structure.Type: GrantFiled: October 9, 2017Date of Patent: August 18, 2020Assignee: Waymo LLCInventors: Pierre-yves Droz, Augusto Tazzoli, David Schleuning, Nathaniel Golshan, David Hutchison
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Patent number: 10707652Abstract: An example method includes stacking a plurality of laser diode bars proximate an alignment plate. Each respective laser diode bar has a front edge through which the respective laser diode bar emits light. The alignment plate has a first side that provides a common plane for aligning the front edges of the laser diode bars and a second side opposite the first side. The alignment plate has a plurality of microholes extending between the first and second sides. The method also includes applying suction to the plurality of laser diode bars through the plurality of microholes. The suction draws the front edges of the laser diode bars against the first side of the alignment plate such that the front edges of the laser diode bars are aligned in the common plane. Conductive plates used to clamp the plurality of laser diodes therebetween may be aligned in a similar fashion.Type: GrantFiled: November 29, 2018Date of Patent: July 7, 2020Assignee: Waymo LLCInventors: Augusto Tazzoli, Pierre-Yves Droz, Nathaniel Golshan
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Publication number: 20200096634Abstract: One example system comprises a light source configured to emit light. The system also comprises a waveguide configured to guide the emitted light from a first end of the waveguide toward a second end of the waveguide. The waveguide has an output surface between the first end and the second end. The system also comprises a plurality of mirrors including a first mirror and a second mirror. The first mirror reflects a first portion of the light toward the output surface. The second mirror reflects a second portion of the light toward the output surface. The first portion propagates out of the output surface toward a scene as a first transmitted light beam. The second portion propagates out of the output surface toward the scene as a second transmitted light beam.Type: ApplicationFiled: September 25, 2018Publication date: March 26, 2020Inventors: Pierre-Yves Droz, David Neil Hutchison, James Dunphy, Nathaniel Golshan, Ralph Hamilton Shepard
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Publication number: 20190072649Abstract: One example system includes a light source that emits light. The system also includes a waveguide that guides the emitted light from a first side of the waveguide toward a second side of the waveguide opposite the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. At least a portion of the reflected light propagates out of the waveguide toward a scene. The system also includes a light detector, and a lens that focuses light from the scene toward the waveguide and the light detector.Type: ApplicationFiled: September 5, 2017Publication date: March 7, 2019Inventors: Pierre-Yves Droz, David Neil Hutchison, Ralph Hamilton Shepard, Nathaniel Golshan
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Patent number: 10170893Abstract: An example method includes stacking a plurality of laser diode bars proximate an alignment plate. Each respective laser diode bar has a front edge through which the respective laser diode bar emits light. The alignment plate has a first side that provides a common plane for aligning the front edges of the laser diode bars and a second side opposite the first side. The alignment plate has a plurality of microholes extending between the first and second sides. The method also includes applying suction to the plurality of laser diode bars through the plurality of microholes. The suction draws the front edges of the laser diode bars against the first side of the alignment plate such that the front edges of the laser diode bars are aligned in the common plane. Conductive plates used to clamp the plurality of laser diodes therebetween may be aligned in a similar fashion.Type: GrantFiled: August 9, 2017Date of Patent: January 1, 2019Assignee: Waymo LLCInventors: Augusto Tazzoli, Pierre-Yves Droz, Nathaniel Golshan