Patents Assigned to Union-Reed Corporation
  • Low brightness lens for circular fluorescent lamps
    Patent number: 4488208
    Abstract: A transparent lighting diffuser panel is provided for circular gas discharge lamps and having an inner surface, facing the lamp, comprising a generally cylindrical toroidal fresnel lens with the optical centerline of the lens approximately equal to the lamp circle diameter and coaxial with the center of revolution of the lamp tube; and an outer surface, facing away from the lamp, comprising an overall pattern of elongated linear triangular prisms in a radial pattern coaxial with the toroidal lens and the lamp.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: December 11, 1984
    Assignee: Union-Reed Corporation
    Inventor: Jack V. Miller