Patents by Inventor Hefen Lin

Hefen Lin 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).

  • Linear illumination sources and systems
    Patent number: 6550942
    Abstract: Improved linear illumination sources are disclosed which utilize external, highly reflective enclosures containing one or more linear openings and thereby achieve improved source efficiency, output irradiance and/or output radiance. Such improved illumination sources may be combined with additional optical elements to produce more complex illumination systems.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: April 22, 2003
    Assignee: AlliedSignal Inc.
    Inventors: Han Zou, Scott M. Zimmerman, John Colvin Wilson, Karl W. Beeson, Michael James McFarland, Hefen Lin, Jerry Wayne Kuper, Lawrence Wayne Shacklette
  • Linear illumination sources and systems
    Patent number: 6186649
    Abstract: Improved linear illumination sources are disclosed which utilize external, highly reflective enclosures containing one or more linear openings and thereby achieve improved source efficiency, output irradiance and/or output radiance. Such improved illumination sources may be combined with additional optical elements to produce more complex illumination systems.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Honeywell International Inc.
    Inventors: Han Zou, Scott M. Zimmerman, John Colvin Wilson, Karl W. Beeson, Michael James McFarland, Hefen Lin, Jerry Wayne Kuper, Lawrence Wayne Shacklette
  • Illumination system having edge-illuminated waveguide and separate components for extracting and directing light
    Patent number: 6106128
    Abstract: An illumination system has separate components for extracting and directing light from a waveguide. The system eliminates the need to provide a light directing array (LDA) that is optically and physically coupled to the waveguide. It is more reliable and robust than previous illumination systems and virtually eliminates the failures associated illumination systems having laminated LDAs. Manufacturing costs are reduced and system performance and reliability are improved. The illumination system is inexpensive to construct, and operates in an efficient, reliable manner, affording extended service at low cost.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: August 22, 2000
    Assignee: Honeywell International Inc.
    Inventors: Han Zou, Karl W. Beeson, Ivan B. Steiner, Scott M. Zimmerman, Hefen Lin