Patents by Inventor Ben Eastlund

Ben Eastlund 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).

  • Sapphire high intensity discharge projector lamp
    Patent number: 6414436
    Abstract: A high intensity discharge lamp, especially for optical projection systems, in one embodiment uses an anode electrode, a cathode electrode and a cylindrical envelope of single crystal (SC) sapphire. The fill may contain hydrogen, chlorine, sodium, scandium, sulfur and selenium and is under pressure exceeding 20 atmospheres. The lamp produces a continuous non-flash arc and generates a correlated color temperature between 6500 and 7000 degrees Kelvin and an efficacy exceeding 60 lumens/watt.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: July 2, 2002
    Assignee: Gem Lighting LLC
    Inventors: Ben Eastlund, Maurice Levis