Patents by Inventor Lotfi Redjem-Saad

Lotfi Redjem-Saad 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: 10962196
    Abstract: A lighting module for a motor vehicle including: a support plate; at least one source of light which is arranged on a first face of the support plate; a heat dissipater which is arranged on a second face of the support plate, opposite the first face; a fan which is arranged between the heat dissipater and a plenum, the fan being designed to aspirate a flow of hot air which is dissipated by the heat dissipater, and is obtained from an incoming flow of air; a plenum which is designed to cover the fan, the plenum including a peripheral skirt which is designed to surround the heat dissipater; an optical assembly which cooperates with rays of light of the at least one source of light, in order to produce a light beam.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: March 30, 2021
    Assignee: VALEO VISION
    Inventors: Lotfi Redjem Saad, Francois Berrezai, Francois Cormier
  • Patent number: 10738964
    Abstract: A lighting module for a vehicle, the lighting module including a cooling circuit including a first chamber delimited by a first heat dissipation device, and designed for the cooling of at least one first lighting element of the lighting module, a second chamber delimited by a second heat dissipation device, and designed for the cooling of at least one second lighting element of the lighting module, and a third chamber delimited by a ventilation device. The third chamber separates the first chamber and the second chamber from one another.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 11, 2020
    Assignee: VALEO VISION
    Inventors: Christophe Cleto, Lotfi Redjem Saad
  • Patent number: 10488033
    Abstract: Device for cooling a light source, laser diode, including a first heatsink equipped with a core provided with a bore extending along a lighting axis and forming a housing for receiving such a light source, and including first fins extending from the core outward, wherein the device includes a second heatsink that has second fins extending toward the lighting axis from a peripheral portion arranged around the lighting axis, at least one second fin of the second heatsink being at least partially interleaved between first fins of the first heat sink.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: November 26, 2019
    Assignee: VALEO VISION
    Inventors: Lotfi Redjem Saad, Sylvain Tournemine, Christophe Duval
  • Patent number: 10465877
    Abstract: An optical module for a motor vehicle including a light source, a heat sink including a plate having a front face for supporting the light source, and including a rear face spiked with cooling fins, a device for producing an airflow. The heat sink includes at least one vent which passes through the plate of the heat sink in proximity to the light source in order to allow the airflow to circulate longitudinally between the front and the rear of the heat sink.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 5, 2019
    Assignee: VALEO VISION
    Inventors: Vanesa Sanchez, Lotfi Redjem Saad, Eric Mornet, Francois Berrezai
  • Patent number: 10451244
    Abstract: A headlamp, notably for a motor vehicle, comprising several light modules and an air cooling duct for the light modules with at least one air inlet for one or more fans, several air outlets to the light modules, and a passage connecting the one or more inlets with the outlets. The duct comprises at least one attached separating wall of the passage.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 22, 2019
    Assignee: Valeo Vision
    Inventors: Francois Berrezai, Lotfi Redjem-Saad
  • Patent number: 10352526
    Abstract: A cooling member for a lighting and/or signaling system for a motor vehicle comprising a base and at least one heat dissipating device with a thermal conduction link to the base, the dissipating device comprising a plurality of dissipating elements, wherein each dissipating element comprises at least one dissipating wall extending from a fixing face. The embodiments relate also to a lighting and/or signaling system and to a method for producing the cooling member.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 16, 2019
    Assignee: Valeo Vision
    Inventors: Marc Duarte, Eric Stefura, Paul Jacquemin, Christophe Cleto, Lotfi Redjem Saad, Brahim El Hachir
  • Publication number: 20190195463
    Abstract: A lighting module for a vehicle, the lighting module including a cooling circuit including a first chamber delimited by a first heat dissipation device, and designed for the cooling of at least one first lighting element of the lighting module, a second chamber delimited by a second heat dissipation device, and designed for the cooling of at least one second lighting element of the lighting module, and a third chamber delimited by a ventilation device. The third chamber separates the first chamber and the second chamber from one another.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Applicant: VALEO VISION
    Inventors: Christophe CLETO, Lotfi REDJEM SAAD
  • Patent number: 10281130
    Abstract: A light-emitting device for an automotive vehicle headlamp lighting module, that includes a light source, comprising a carrier comprising two opposite faces, a first face forming a first joining surface; an optoelectronic chip that is fastened to the second face of the carrier; connecting pins that stick out with respect to the first face of the carrier and that are connected to the chip; the light-emitting device furthermore including a heat exchanger comprising a second joining surface that is connected to the first joining surface. The two joining surfaces are joined to each other by means of an adhesive material; each of the connecting pins includes a portion extending radially in the adhesive material; and the connecting pins do not pass through the second joining surface.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 7, 2019
    Assignee: Valeo Vision
    Inventors: Stephan Sommerschuh, Lotfi Redjem Saad
  • Publication number: 20180372298
    Abstract: A lighting module for a motor vehicle including: a support plate; at least one source of light which is arranged on a first face of the support plate; a heat dissipater which is arranged on a second face of the support plate, opposite the first face; a fan which is arranged between the heat dissipater and a plenum, the fan being designed to aspirate a flow of hot air which is dissipated by the heat dissipater, and is obtained from an incoming flow of air; a plenum which is designed to cover the fan, the plenum including a peripheral skirt which is designed to surround the heat dissipater; an optical assembly which cooperates with rays of light of the at least one source of light, in order to produce a light beam.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 27, 2018
    Applicant: VALEO VISION
    Inventors: Lotfi REDJEM SAAD, Francois Berrezai, Francois Cormier
  • Publication number: 20180274775
    Abstract: Device for cooling a light source, laser diode, including a first heatsink equipped with a core provided with a bore extending along a lighting axis and forming a housing for receiving such a light source, and including first fins extending from the core outward, wherein the device includes a second heatsink that has second fins extending toward the lighting axis from a peripheral portion arranged around the lighting axis, at least one second fin of the second heatsink being at least partially interleaved between first fins of the first heat sink.
    Type: Application
    Filed: March 20, 2018
    Publication date: September 27, 2018
    Applicant: VALEO VISION
    Inventors: Lotfi REDJEM SAAD, Sylvain TOURNEMINE, Christophe DUVAL
  • Publication number: 20180266646
    Abstract: An optical module for a motor vehicle including a light source, a heat sink including a plate having a front face for supporting the light source, and including a rear face spiked with cooling fins, a device for producing an airflow. The heat sink includes at least one vent which passes through the plate of the heat sink in proximity to the light source in order to allow the airflow to circulate longitudinally between the front and the rear of the heat sink.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Applicant: VALEO VISION
    Inventors: Vanesa Sanchez, Lotfi Redjem Saad, Eric Mornet, Francois Berrezai
  • Patent number: 10018320
    Abstract: A light module comprises two submodules added one against the other and in each of which a light source is associated with an optical deflection element for the deflection of the light rays emitted toward a projection optical device arranged at the output of the module. Each submodule comprises a half-shell forming, in combination with the other half-shell, a space that is enclosed apart from at least one aperture produced in each half-shell to form air circulation cooling means.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: July 10, 2018
    Assignee: VALEO VISION
    Inventors: Lotfi Redjem-Saad, Eric Stefura, Paul Jacquemin, Brahim El Hachir
  • Publication number: 20170219182
    Abstract: A cooling member for a lighting and/or signaling system for a motor vehicle comprising a base and at least one heat dissipating device with a thermal conduction link to the base, the dissipating device comprising a plurality of dissipating elements, wherein each dissipating element comprises at least one dissipating wall extending from a fixing face. The embodiments relate also to a lighting and/or signaling system and to a method for producing the cooling member.
    Type: Application
    Filed: August 4, 2015
    Publication date: August 3, 2017
    Inventors: Marc Duarte, Eric Stefura, Paul Jacquemin, Christophe Cleto, Lotfi Redjem Saad, Brahim El Hachir
  • Publication number: 20170153003
    Abstract: A light-emitting device for an automotive vehicle headlamp lighting module, that includes a light source, comprising a carrier comprising two opposite faces, a first face forming a first joining surface; an optoelectronic chip that is fastened to the second face of the carrier; connecting pins that stick out with respect to the first face of the carrier and that are connected to the chip; the light-emitting device furthermore including a heat exchanger comprising a second joining surface that is connected to the first joining surface. The two joining surfaces are joined to each other by means of an adhesive material; each of the connecting pins includes a portion extending radially in the adhesive material; and the connecting pins do not pass through the second joining surface.
    Type: Application
    Filed: November 21, 2016
    Publication date: June 1, 2017
    Inventors: Stephan Sommerschuh, Lotfi Redjem Saad
  • Publication number: 20170102120
    Abstract: A headlamp, notably for a motor vehicle, comprising several light modules and an air cooling duct for the light modules with at least one air inlet for one or more fans, several air outlets to the light modules, and a passage connecting the one or more inlets with the outlets. The duct comprises at least one attached separating wall of the passage.
    Type: Application
    Filed: September 29, 2016
    Publication date: April 13, 2017
    Inventors: Francois Berrezai, Lotfi Redjem-Saad
  • Publication number: 20160290589
    Abstract: A light module comprises two submodules added one against the other and in each of which a light source is associated with an optical deflection element for the deflection of the light rays emitted toward a projection optical device arranged at the output of the module. Each submodule comprises a half-shell forming, in combination with the other half-shell, a space that is enclosed apart from at least one aperture produced in each half-shell to form air circulation cooling means.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 6, 2016
    Inventors: Lotfi Redjem-Saad, Eric Stefura, Paul Jacquemin, Brahim El Hachir