Patents by Inventor Robert Van Leeuwen

Robert Van Leeuwen 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: 11916355
    Abstract: Narrow beam divergence semiconductor sources are operable to generate a beam having a substantially narrow beam divergence, an emission wavelength, and a substantially uniform beam intensity. The presence of an extended length mirror can help suppress one or more longitudinal and/or transverse modes such that the beam divergence and/or the spectral width of emission is substantially reduced.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 27, 2024
    Assignee: Princeton Optronics, Inc.
    Inventors: Jean-Francois Seurin, Robert Van Leeuwen, Chuni Ghosh
  • Publication number: 20220393440
    Abstract: An optical assembly comprising a busbar system comprising an electrically conductive first busbar conductively coupled to one or more electrically conductive mechanical fasteners and one or more vertical-cavity surface-emitting laser (VCSEL) array modules each comprising one or more electrically conductive contacts. Each VCSEL array module is releasably fastened to the busbar system by the one or more of the mechanical fasteners. When in a fastened position, the one or more mechanical fasteners are conductively coupled to the one or more electrically conductive contacts to provide an electrical connection between the first busbar and the one or more VCSEL array modules.
    Type: Application
    Filed: January 14, 2021
    Publication date: December 8, 2022
    Inventors: Qing Wang, Nuran Cubukciyan, Robert Van Leeuwen
  • Publication number: 20210320478
    Abstract: The present disclosure describes various linear VCSEL arrays, as well as VCSEL array chips incorporating such linear VCSEL arrays, and modules, host devices and other apparatus into which one or more of the linear VCSEL arrays are integrated. Implementations can include, for example, varying the aperture size of the VCSELs, tapering the shape of the transmission line, and/or changing the density of the VCSELs.
    Type: Application
    Filed: September 4, 2019
    Publication date: October 14, 2021
    Applicant: AMS SENSORS ASIA PTE. LTD.
    Inventors: Robert Van Leeuwen, Laurence Watkins, Maik Scheller
  • Publication number: 20210057883
    Abstract: Narrow beam divergence semiconductor sources are operable to generate a beam having a substantially narrow beam divergence, an emission wavelength, and a substantially uniform beam intensity. The presence of an extended length mirror can help suppress one or more longitudinal and/or transverse modes such that the beam divergence and/or the spectral width of emission is substantially reduced.
    Type: Application
    Filed: December 26, 2018
    Publication date: February 25, 2021
    Inventors: Jean-Francois Seurin, Robert Van Leeuwen, Chuni Ghosh
  • Publication number: 20210057888
    Abstract: Structured light projection system include narrow beam divergence semiconductor sources. The structured light projector system includes an array of narrow beam divergence semiconductor sources, and a projection lens operable to generate an image of the array of narrow beam divergence semiconductor source. Each narrow beam divergence semiconductor source can include an extended length mirror that helps suppress one or more longitudinal and/or transverse modes such that the beam divergence and/or the spectral width of emission is substantially reduced.
    Type: Application
    Filed: December 27, 2018
    Publication date: February 25, 2021
    Inventors: Jean-Francois Seurin, Chuni Ghosh, Robert Van Leeuwen
  • Patent number: 9574541
    Abstract: A high efficiency optical ignition device is provided in a two-part compact and robust package to be mounted directly on an internal combustion engine chamber. The ignition device ignites a combustion fuel with a high intensity plasma generated by a high power laser beam from a solid state laser operable in Q-switched, or non-Q-switched mode for producing short or long pulses, respectively. Multiple pulses are generated, and duration and frequency of the laser beam pulses are controlled by controlling an optical pump module to pump the solid state laser. The optical pump module comprises a semiconductor laser, preferably a VCSEL device. One or more laser beams are precisely directed, each one to a desired location anywhere within the combustion chamber for more efficient and near complete burning of the combustion fuel. The robust packaging is well suited to withstand mechanical and thermal stresses of the internal combustion engine.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: February 21, 2017
    Assignee: PRINCETON OPTRONICS INC.
    Inventors: Chuni L Ghosh, Qing Wang, Bing Xu, Robert van Leeuwen
  • Publication number: 20160348636
    Abstract: A high efficiency optical ignition device is provided in a two-part compact and robust package to be mounted directly on an internal combustion engine chamber. The ignition device ignites a combustion fuel with a high intensity plasma generated by a high power laser beam from a solid state laser operable in Q-switched, or non-Q-switched mode for producing short or long pulses, respectively. Multiple pulses are generated, and duration and frequency of the laser beam pulses are controlled by controlling an optical pump module to pump the solid state laser. The optical pump module comprises a semiconductor laser, preferably a VCSEL device. One or more laser beams are precisely directed, each one to a desired location anywhere within the combustion chamber for more efficient and near complete burning of the combustion fuel. The robust packaging is well suited to withstand mechanical and thermal stresses of the internal combustion engine.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Applicant: Princeton Optronics Inc.
    Inventors: Chuni L. Ghosh, Qing Wang, Bing Xu, Robert van Leeuwen
  • Patent number: 9146836
    Abstract: The present invention extends to methods, systems, and computer program products for linking diagnostic visualizations to regions of application code. Diagnostic visualizations emitted during execution of an application are displayed. The diagnostic visualizations partially represent the abstract objective of the application (e.g., as envisioned by a developer). Diagnostic data for at least one of a plurality of components is displayed. The diagnostic data indicates the performance of the at least one of the plurality of components during execution of the application. The displayed one or more diagnostic visualizations and the displayed diagnostic data is correlated to link the one or more diagnostic visualizations to the at least one of the plurality of components. Linking the one or more diagnostic visualizations to the at least one of the plurality of components can better indicate how the application's behavior reconciles the abstract objective.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 29, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: James Rapp, Daniel Griffing, Alexander Dadiomov, Matthew Jacobs, Ben Nesson, Drake A. Campbell, Mayank Agarwal, Paulo Cesar Sales Janotti, Xinhua Ji, Eric Ledoux, Alexey Kamenev, Jared Robert Van Leeuwen
  • Patent number: 8576885
    Abstract: Optical pump modules using VCSEL arrays are provided to pump optical gain media for achieving high power laser output in CW, QCW and pulse operation modes for operation. Low divergence and symmetric far-field emission from VCSELs are particularly suitable for compact arrays. VCSEL arrays configured as laser pump modules are operable at high temperatures with practically no degradation over a long period of time. VCSEL pump modules are adaptable for side- or end-pumping configurations to pump high power lasers in CW, QCW and pulse mode. Power output from VCSEL pump modules is scalable. Incorporating microlens arrays with the VCSEL arrays improve brightness of the pump modules. High power and high temperature operation of VCSEL modules make it suitable for making compact high power solid state lasers that are operable in small spaces such as, ignition of internal combustion engines, stationary power generation engines and pulsed detonation engines.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: November 5, 2013
    Assignee: Princeton Optronics, Inc.
    Inventors: Robert van Leeuwen, Yihan Xiong, Jean F Seurin, Chuni L Ghosh, Bing Xu
  • Publication number: 20130266032
    Abstract: Disclosed herein are architectures for an external cavity laser. In some embodiments, the external cavity laser includes vertical cavity surface emitting laser (VCSEL) elements, a Brewster plate, frequency doubling chips, and a microlens array. The Brewster plate is arranged at an angle relative to the light path, and is configured to polarize at least the light received from the VCSELs and propagating on the light path in a first direction, and extract, from the external cavity, frequency-doubled light propagating on the light path in a second direction opposite to the first direction. The doubling chips are operable to receive the light and double the frequency of a portion of the received light. The microlens array is aligned with the VCSEL elements. A mount may be employed to mount the side stack of doubling chips by either side mounting or end mounting.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 10, 2013
    Applicant: RealD Inc.
    Inventors: Robert Van Leeuwen, Bing XU, Qing Wang, Chuni Ghosh
  • Publication number: 20130152052
    Abstract: The present invention extends to methods, systems, and computer program products for linking diagnostic visualizations to regions of application code. Diagnostic visualizations emitted during execution of an application are displayed. The diagnostic visualizations partially represent the abstract objective of the application (e.g., as envisioned by a developer). Diagnostic data for at least one of a plurality of components is displayed. The diagnostic data indicates the performance of the at least one of the plurality of components during execution of the application. The displayed one or more diagnostic visualizations and the displayed diagnostic data is correlated to link the one or more diagnostic visualizations to the at least one of the plurality of components. Linking the one or more diagnostic visualizations to the at least one of the plurality of components can better indicate how the application's behavior reconciles the abstract objective.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Applicant: Microsoft Corporation
    Inventors: James Rapp, Daniel Griffing, Alexander Dadiomov, Matthew Jacobs, Ben Nesson, Drake A. Campbell, Mayank Agarwal, Paulo Cesar Sales Janotti, Xinhua Ji, Eric Ledoux, Alexey Kamenev, Jared Robert Van Leeuwen
  • Patent number: 6788715
    Abstract: An IAU laser is stabilized to reduce intensity fluctuations. The laser comprises an IAU gain medium disposed in an optical resonance cavity and a multiphoton absorbing medium disposed in the cavity to reduce intensity fluctuations. A pump source to excite the gain medium is coupled to the cavity. In operation, the multiphoton absorbing material absorbs primarily at high intensity levels, effectively increasing the loss at high intensities. In an advantageous embodiment, the active medium comprises erbium-doped glass and the multiphoton absorber comprises a body of semiconductor exhibiting two-photon absorption at the emission wavelength.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 7, 2004
    Assignee: Princeton Optronics
    Inventors: Robert Van Leeuwen, Thomas Oh