Patents Assigned to Advanced Lighting Technologies
  • Auxiliary lighting control circuit and method for a HID lamp lighting system
    Patent number: 6072286
    Abstract: An auxiliary lighting control circuit and method for a lighting system having a HID lamp as the primary light source and an auxiliary light source for providing light when the HID lamp is extinguished or below full brightness but power remains available to the circuit. The circuit senses the HID lamp current and activates a relay to a conductive state using a solid state controller when the HID lamp current is below a predetermined current magnitude to effect the lighting of the auxiliary light source.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: June 6, 2000
    Assignee: Advanced Lighting Technologies, Inc.
    Inventor: Lawrence M. Sears
  • Combination metal halide and auxiliary bulb lamp
    Patent number: 6022125
    Abstract: The present invention is a combination metal halide and auxiliary light bulb floor or table lamp which is suitable for home or office illumination. The lamp includes a lampholder module which provides a unitary housing for the bulb sockets and the electrical components required to operate the bulbs. The module also positions each bulb relative to the others to minimize shadowing which results when a bulb casts a shadow due to the light emanating from another bulb.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: February 8, 2000
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: William E. Bartasevich, John J. Andrisin, III, John J. McEllen
  • Strengthening agent, strengthened metal halide particles, and improved lamp fill material
    Patent number: 5972442
    Abstract: Particle compositions are described comprising certain metal halides in combination with a strengthening agent. The addition of the strengthening agent to a metal halide particle increases the particle's strength thereby reducing breakage on impact and during handling. When used as a vaporizable metal halide fill in discharge lamps, the particle strength is increased without significantly altering the spectral and electrical characteristics of the lamp. Methods of making the particles and arc tube containing the particles are also disclosed.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: October 26, 1999
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: Scott Anderson, Steve Hansen
  • Metal halide lamps and method of manufacture
    Patent number: 5924787
    Abstract: Metal halide table and floor lamps and method of manufacture. A lamp base module housing a power supply, ballast, and illumination controls separate from a metal halide bulb with the metal halide bulb housed within the base or a luminaire module. Lamp modules of various size and appearance may be manufactured separately and easily assembled by those of but ordinary skill.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: July 20, 1999
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: John McEllen, Juris Sulcs
  • Operating circuit for an inductively ballasted arc discharge lamp
    Patent number: 5896013
    Abstract: Ballast circuitry for a metal halide lamp is disclosed enabling sustained operation with a typical 120 volt AC power source. A novel auxiliary circuit network is operatively associated with inductive type starting circuit means to provide lamp reignition when needed during each half-cycle of the AC power supply. The present auxiliary circuit network employs breakover switching means connected in series with capacitor storage means for further connection across the operating discharge lamp.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: April 20, 1999
    Assignee: Advanced Lighting Technologies, Inc.
    Inventor: Robert A. Leskovec
  • Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture
    Patent number: 5882237
    Abstract: A fluorescent lamp containing zinc amalgam and a method of precisely controlling the amount of mercury introduced into a temperature controlled fluorescent lamp. Precise quantities of mercury may be introduced into a fluorescent lamp in the form of solid zinc amalgam pellets that are in a metastable, non-equilibrium state.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: March 16, 1999
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: James F. Sarver, Duane A. Stafford, Steven C. Hansen, Timothy R. Brumleve
  • Lampholder assembly with integral ballast for a standing lamp
    Patent number: D403100
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: December 22, 1998
    Assignee: Advanced Lighting Technologies, Inc.
    Inventors: William E. Bartasevich, John J. Andrisin, III, John J. McEllen