Patents Assigned to Colorado Instruments, Inc.
  • Patent number: 5012160
    Abstract: A display assembly particularly for the point-of-purchase field utilizes a light source to power the display. A solar cell is electrically connected, through a simple flashing circuit, to an array of light emitting diodes (LEDs). The diodes have a current usage of about 2 ma or less; e.g., they may be double heterojunction AlGaAs/GaAs material. The circuit has a current drain of about 0.1 ma or less. The solar cell may be mounted between an artificial light source (such as a fluorescent bulb) and a surrounding metal housing by sheet material having an undulating (e.g., accordion) configuration. Transparent UV inhibited plastic film tape may attach the solar cell to a central undulation of the sheet material while magnets strips attach side edges of the sheet material to a metal housing, so that the solar cell is in close proximity to (e.g., touches) the light source.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: April 30, 1991
    Assignee: Colorado Instruments, Inc.
    Inventor: Kathleen D. Dunn Thompson