Patents by Inventor Koushik Saha

Koushik Saha 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: 10655831
    Abstract: The specification and drawings present methodology for modularly expanding sensing capabilities of a luminaire or a luminaire mounted sensing system by adding replaceable exterior sensor module(s) in a desired position in a vicinity of an existing (legacy) luminaire or a luminaire system for both inside and outside applications. For outside applications, this modular expansion may be performed while maintaining weathertight sealing integrity, e.g., waterproofing of the luminaire-sensor system/apparatus including exterior housing, exterior electrical connections, cables and any other exposed components. The embodiments described herein can provide diverse sensor capability and future expansion needs for luminaire mounted sensing systems and for processing sensor signals.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 19, 2020
    Assignee: Current Lighting Solutions, LLC
    Inventors: Thomas Clynne, Jonathan Robert Meyer, Francis Beaudoin, Eric Lavigne, Thomas Knapp, Koushik Saha
  • Patent number: 10223944
    Abstract: A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: March 5, 2019
    Assignee: GE Lighting Solutions, LLC
    Inventors: Jeffrey Marc Nall, Kevin Carpenter, Koushik Saha, Chenyang Li, Ronald K. Brengartner, Jr., Xin Wang, Tomislav J. Stimac
  • Publication number: 20180087760
    Abstract: The specification and drawings present methodology for modularly expanding sensing capabilities of a luminaire or a luminaire mounted sensing system by adding replaceable exterior sensor module(s) in a desired position in a vicinity of an existing (legacy) luminaire or a luminaire system for both inside and outside applications. For outside applications, this modular expansion may be performed while maintaining weathertight sealing integrity, e.g., waterproofing of the luminaire-sensor system/apparatus including exterior housing, exterior electrical connections, cables and any other exposed components. The embodiments described herein can provide diverse sensor capability and future expansion needs for luminaire mounted sensing systems and for processing sensor signals.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 29, 2018
    Inventors: Thomas CLYNNE, Jonathan Robert MEYER, Francis BEAUDOIN, Eric LAVIGNE, Thomas KNAPP, Koushik SAHA
  • Patent number: 9836999
    Abstract: A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: December 5, 2017
    Assignee: GE Lighting Solutions, LLC
    Inventors: Jeffrey Marc Nall, Kevin Carpenter, Koushik Saha, Chenyang Li, Ronald K. Brengartner, Jr., Xin Wang, Tomislav J. Stimac
  • Patent number: 9638394
    Abstract: A system and method according to various embodiments can include a lighting fixture comprising a light source. A multilayer thin film coated reflector is applied to an outer light emitting surface of the lighting fixture. A top layer of the multilayer thin film coated reflector comprises a material including an anatase TiO crystal structure that exhibits antimicrobial properties when activated by the light source.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 2, 2017
    Assignee: GE LIGHTING SOLUTIONS, LLC
    Inventors: Dengke Cai, Matthew A. Bugenske, Michael Vincent Yee, Cherian Jacob, Koushik Saha, Mark Edward Kaminski, Benjamin James Ward
  • Patent number: 9611999
    Abstract: A multi-reflector lighting apparatus including a reflector having a reflecting layer deposited on a base layer. The multi-reflector lighting apparatus further includes a first oxide layer deposited on the reflecting layer. The multi-reflector lighting apparatus further includes a second oxide layer deposited on the first oxide layer. The multi-reflector lighting apparatus further includes an alternating plurality of a relatively low refractive index oxide layer material and a relatively high refractive index oxide layer material deposited on the second oxide layer.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: April 4, 2017
    Assignee: GE LIGHTING SOLUTIONS, LLC
    Inventors: Dengke Cai, Mark J. Mayer, Koushik Saha, Benjamin James Ward, Tianji Zhao
  • Patent number: 9564070
    Abstract: A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: February 7, 2017
    Assignee: GE LIGHTING SOLUTIONS, LLC
    Inventors: Jeffrey Marc Nall, Kevin Carpenter, Koushik Saha, Chenyang (Kevin) Li, Ronald K. Brengartner, Jr., Xin (Bill) Wang, Tomislav J. Stimac
  • Patent number: 9471717
    Abstract: Provided is a method including determining a first incident angle at which light from a light source will impinge on a first thin-film reflective stack of a planned first reflector for a lighting system. The method also includes determining a second incident angle at which light from the light source will impinge on a second thin-film reflective stack of a planned second reflector for the lighting system. The method further includes designing, using a processor executing a software package, the first reflector, comprising tuning a reflective characteristic of the first thin-film reflective stack as a function of the first incident angle determined, and designing, using the processor executing the software package, the second reflector, comprising tuning a reflective characteristic of the second thin-film reflective stack as a function of the second incident angle determined.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: October 18, 2016
    Assignee: GE Lighting Solutions, LLC
    Inventors: Benjamin James Ward, Mark J Mayer, Koushik Saha, Dengke Cai, Gabriel Michael Smith
  • Publication number: 20160258596
    Abstract: A reflector that includes a substrate and a film disposed onto the substrate is provided. The film may include gas barrier layers configured to protect a reflective layer included in the film by blocking gas molecules from the top of the reflective layer and gas molecules originating from the bottom of the reflective layer.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 8, 2016
    Inventors: Dengke Cai, Tianji Zhao, Mark J. Mayer, Koushik Saha, Benjamin James Ward
  • Patent number: 9380684
    Abstract: Provided is an outdoor lighting assembly including at least one lighting arrays having one or more light sources configured for lighting a plurality of zones. At least one controller is operatively coupled to the at least one lighting array. The controller is configured to independently change optical outputs of the one or more light sources in each of the zones.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: June 28, 2016
    Assignee: GE LIGHTING SOLUTIONS, LLC
    Inventors: Mark J. Mayer, Koushik Saha, Kevin Carr Payne
  • Publication number: 20160102841
    Abstract: A silver-based reflector includes a hybrid protection layer that includes a thin Aluminum (Al) protection layer thermally deposited onto a Silver (Ag) reflective layer, which prevents yellowing or tarnishing of the Ag reflective layer. In an embodiment, a lamp reflector is formed by providing a substrate material in the shape of a reflector, thermally depositing an Ag reflective layer onto the an interior surface of the reflector having a sufficient thickness to reflect light, and thermally depositing an Al protective layer onto the Ag reflective layer to protect the Ag reflective layer from oxidation and sulfide formation. The Al protective layer has a thickness within the range of about 30 angstroms (?) to about 100 ?.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 14, 2016
    Inventors: Dengke Cai, Mark J. Mayer, Koushik Saha, Tianji Zhao
  • Publication number: 20160033110
    Abstract: A system and method according to various embodiments can include a lighting fixture comprising a light source. A multilayer thin film coated reflector is applied to an outer light emitting surface of the lighting fixture. A top layer of the multilayer thin film coated reflector comprises a material including an anatase TiO crystal structure that exhibits antimicrobial properties when activated by the light source.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 4, 2016
    Inventors: Dengke Cai, Matthew A. Bugenske, Michael Vincent Yee, Cherian Jacob, Koushik Saha, Mark Edward Kaminski, Benjamin James Ward
  • Publication number: 20160018080
    Abstract: Provided is a method including depositing a reflecting layer on a base layer. The method further includes depositing a first oxide layer on the reflecting layer. The method further includes depositing a second oxide layer on the first oxide layer. The method further includes depositing an alternating plurality of a relatively low refractive index oxide layer material and a relatively high refractive index oxide layer material on the second oxide layer.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 21, 2016
    Inventors: Dengke CAI, Mark J. MAYER, Koushik Saha, Benjamin James WARD, Tianji ZHAO
  • Publication number: 20160020370
    Abstract: A light emitting diode (LED) package according to various embodiments can include a metal substrate having a surface roughness. A thin film coated reflector is applied to the metal substrate. At least one light emitting diode (LED) chip is mounted above at least a portion of the metal substrate.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 21, 2016
    Inventors: Dengke Cai, Cherian Jacob, Mark J. Mayer, Koushik Saha, Xiaomei Lou, Gabriel Michael Smith, Benjamin James Ward
  • Patent number: 9236545
    Abstract: Provided is a multi-layer reflective coating for application to a lighting housing assembly, including a polymer substrate adjacent a polymer base coat layer applied to the lighting housing. Atop the polymer base coat layer is an aluminum adhesion layer, followed by a diffusive barrier layer, and a silver reflective layer. The aluminum adhesion layer promotes adhesion between the polymer base coat layer and the silver reflective layer. The diffusive barrier layer prevents aluminum and silver interaction, which could form a silver and aluminum alloy. A spectrum tunable layer is applied atop the silver reflective layer for spectrum tuning the silver reflective layer for maximum compatibility with a light emitting diode (LED) lighting source.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 12, 2016
    Assignee: GE LIGHTING SOLUTIONS LLC
    Inventors: Dengke Cai, Gabriel Michael Smith, Xiaomei Lou, Koushik Saha, Mark J Mayer, Peter W Brown, Tianji Zhao
  • Patent number: 9165487
    Abstract: A backlighting system for a cabinet sign may include a plurality of panels. Each panel includes a plurality of light emitting diodes (“LEDs”) attached to the panel. The diode has a box sign depth factor of less than about 1.4. An integrated circuit may also be located on the panel. A wire physically connects adjacent panels.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: October 20, 2015
    Assignee: GE Lighting Solutions, LLC
    Inventors: Jeffrey Marc Nall, Kevin Carpenter, Koushik Saha, Chenyang Li, Ronald K. Brengartner, Jr., Xin Wang, Tamislav J. Stimac
  • Publication number: 20150296597
    Abstract: Provided is an outdoor lighting assembly including at least one lighting arrays having one or more light sources configured for lighting a plurality of zones. At least one controller is operatively coupled to the at least one lighting array. The controller is configured to independently change optical outputs of the one or more light sources in each of the zones.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 15, 2015
    Inventors: Mark J. Mayer, Koushik Saha, Kevin Carr Payne
  • Publication number: 20150267908
    Abstract: Provided is a lighting assembly including at least one thermally conductive substrate and on multilayered interference dielectric thin film coating. The treated lighting assembly substrate effectively redistributes heat at various vector locations on the optical reflector to cooler vector locations.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 24, 2015
    Applicant: GE LIGHTING SOLUTIONS, LLC
    Inventors: Gabriel Michael Smith, Mark J MAYER, Koushik SAHA, Dengke CAI, Matthew Steven MRAKOVICH
  • Publication number: 20150267894
    Abstract: Provided is a method including determining a first incident angle at which light from a light source will impinge on a first thin-film reflective stack of a planned first reflector for a lighting system. The method also includes determining a second incident angle at which light from the light source will impinge on a second thin-film reflective stack of a planned second reflector for the lighting system. The method further includes designing, using a processor executing a software package, the first reflector, comprising tuning a reflective characteristic of the first thin-film reflective stack as a function of the first incident angle determined, and designing, using the processor executing the software package, the second reflector, comprising tuning a reflective characteristic of the second thin-film reflective stack as a function of the second incident angle determined.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 24, 2015
    Applicant: GE Lighting Solutions, LLC.
    Inventors: Benjamin James WARD, Mark J. MAYER, Koushik SAHA, Dengke CAI, Gabriel Michael SMITH
  • Publication number: 20150212240
    Abstract: A reflective structure includes a polymer layer and a reflective coating applied to the plastic substrate. The reflective coating includes a first hybrid metal oxide layer, a reflective metal layer, a second hybrid metal oxide layer, and a protective coating layer.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 30, 2015
    Applicant: GE LIGHTING SOLUTIONS, LLC
    Inventors: Dengke CAI, Cherian JACOB, Emily Lauren MARTIS, Mark J. MAYER, Koushik SAHA, Benjamin James WARD