Patents Examined by Michael Razave
  • Electrodeless high pressure sodium iodide arc lamp
    Patent number: 4783615
    Abstract: High pressure xenon is used as a buffer gas in an electrodeless sodium iodide arc lamp. Very high efficacies are achieved by using an arc tube with rounded edges and by surrounding a portion of the arc tube with quartz wool. The arc tube may also contain small amounts of mercury iodide.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: November 8, 1988
    Assignee: General Electric Company
    Inventor: James T. Dakin