Patents Assigned to Landus Inc.
  • Luminescent concentrator light source
    Patent number: 4935632
    Abstract: A light assembly comprises a self-luminescent light source, a wave guide and output optics. The self-luminescent light source takes the form of a luminescent concentrator which is activated by beta radiation from tritium which is immobilized in a matrix in which a luminescent material is distributed.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: June 19, 1990
    Assignee: Landus Inc.
    Inventor: Douglas Hart
  • Tritium light
    Patent number: 4788437
    Abstract: A light assembly comprises a self-luminescent light source, a wave guide and output optics. The self-luminescent light source takes the form of a luminescent concentrator which is activated directly or indirectly by radioactive radiation, typically beta radiation from tritium.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: November 29, 1988
    Assignee: Landus Inc.
    Inventors: Donald A. Urquhart, Douglas Hart