Patents Assigned to eLumigen LLC
  • Publication number: 20170343165
    Abstract: A light engine includes a first plurality of diodes coupled in series. The first plurality of diodes includes a first anode end and a first cathode end. A second plurality of diodes is coupled in series. The second plurality of diodes includes a second anode end and a second cathode end. A first terminal is electrically coupled to the first cathode end and said second anode end to form a first node. The second terminal is coupled to said first anode end. A third plurality of diodes is coupled in series. The second plurality of diodes includes a third anode end and a third cathode end. The third terminal is coupled to the third cathode end. A fourth terminal is electrically coupled to the second cathode end and the third anode end to form a first node.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Applicant: eLUMIGEN LLC
    Inventors: Brian PETKU, Mahendra DASSANAYAKE, Gennaro FEDELE
  • Patent number: 9829187
    Abstract: An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: November 28, 2017
    Assignee: eLumigen LLC
    Inventors: Gennaro Fedele, Mahendra Dassanayake, Brian Petku, Kevin Nalezyty, Christopher Darr
  • Patent number: 9651219
    Abstract: A light assembly includes a cover having an upper portion and a redirection portion. The cover has a longitudinal axis and a housing that is coupled to the cover. A lamp base is coupled to the housing. A circuit board is disposed within the housing. The circuit board has a plurality of light sources thereon. An internal redirection element is coupled to the circuit board and has a curvilinear shaped surface for reflecting a first portion of light from the plurality of light sources through the redirection portion of the cover and transmitting a second portion of light therethrough.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: May 16, 2017
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Brian Petku
  • Patent number: 8723424
    Abstract: A light assembly includes a light source circuit board and a plurality of light-emitting diodes disposed on the light source circuit board. A plurality of light pipes axially extends from and adjacent to each light-emitting diode. Each light pipe has a respective first end adjacent to the plurality of light-emitting diodes and a second end opposite to the light-emitting diodes. The plurality of light pipes communicates light from the light-emitting diodes therethrough and defines a cavity therebetween. A plurality of thermal vanes forms a heat sink for removing heat from the light-emitting diodes. The plurality of thermal vanes extend adjacent to the plurality of light pipes. A driver circuit board is disposed within the cavity.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 13, 2014
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Gennaro Fedele, James A. Karchon, Alles Hiranthini
  • Patent number: 8449137
    Abstract: A light assembly that includes an elongated housing, a reflective parabolic cylindrical surface within the elongated housing having a focal line and an elongated cover coupled to the elongated housing. The light assembly also includes a plurality of light sources spaced apart longitudinally and emitting light toward the parabolic cylindrical surface. The parabolic cylindrical surface reflects light from the light sources out of the housing through the cover.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 28, 2013
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
  • Patent number: 8419218
    Abstract: A light assembly having an axis of symmetry that includes an enclosure comprising at least a base and a cover coupled to the base. The light assembly also includes a plurality of light sources disposed on a circuit board within the enclosure in a first ring having a center point aligned with the axis of symmetry. The light assembly also includes a reflector that has a first focal point within the cover and a plurality of second focal points disposed in a second ring coincident with the first ring.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 16, 2013
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
  • Patent number: 8282250
    Abstract: A light assembly includes a cover, a base and a housing coupled between the housing and the base. A first circuit board is disposed within the housing. The first circuit board has a plurality of light sources thereon. The housing comprises an inner wall defining a first volume therein and an outer wall spaced apart from the inner wall. The housing comprises a plurality of spaced apart fins extending between the inner wall and the outer wall define a plurality of channels having a first end proximate the cover and a second end proximate the base. The channels have a first cross sectional area proximate the first end greater than a second cross-sectional area proximate the second end. An elongated control circuit board assembly is electrically coupled to the light sources of the first circuit.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: October 9, 2012
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Hiranthini Alles
  • Patent number: 8277082
    Abstract: A light assembly that includes an enclosure, a circuit board having a plurality of light sources disposed within the enclosure, and a plurality of light redirection elements associated with a respective one of the plurality of light sources. Each of the light redirection elements directs light toward a common point within the enclosure.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: October 2, 2012
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
  • Publication number: 20120169235
    Abstract: A light assembly includes a light source circuit board and a plurality of light-emitting diodes disposed on the light source circuit board. A plurality of light pipes axially extends from and adjacent to each light-emitting diode. Each light pipe has a respective first end adjacent to the plurality of light-emitting diodes and a second end opposite to the light-emitting diodes. The plurality of light pipes communicates light from the light-emitting diodes therethrough and defines a cavity therebetween. A plurality of thermal vanes forms a heat sink for removing heat from the light-emitting diodes. The plurality of thermal vanes extend adjacent to the plurality of light pipes. A driver circuit board is disposed within the cavity.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 5, 2012
    Applicant: eLumigen LLC
    Inventors: Mahendra Dassanayake, Gennaro Fedele, James A. Karchon, Alles Hiranthini
  • Patent number: 8192057
    Abstract: A light assembly that includes a base, a housing extending from the base having a partial paraboloidal cross-sectional surface, a light-shifting element disposed within the housing, and a plurality of light sources coupled to the housing. The light sources generate light. The light assembly also includes an angular portion reflecting light from the light sources toward the parabolic cross-sectional surface so that the light reflected from the parabolic surface is directed toward the light-shifting element and light reflected from the light-shifting element is directed out of the housing after reflecting from the housing.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 5, 2012
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
  • Patent number: 8186852
    Abstract: A light assembly 1100 includes a cover 18, a housing 16 coupled to the cover 18 and a lamp base 14 coupled to the cover 18. The light assembly 1100 also includes a first circuit board 30 disposed within the housing 16. The first circuit board 30 has a plurality of light sources 32 thereon. A heat sink 210 is thermally coupled to the light sources 32. The heat sink 32 includes a plurality of spaced-apart layers 1140 having outer edges and openings therethrough. Each of the outer edges 1144 are in contact with the housing 16. The light assembly also includes an elongated control circuit board assembly 1110 electrically coupled to the light sources 32 of the first circuit board 30 and the lamp base 14. The control circuit board 1110 extends through the openings 1170. The control circuit board 1110 has a plurality of electrical components 1112 thereon for controlling the light sources 32.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 29, 2012
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu