Patents Assigned to Artifex Corporation
  • Color changing device
    Patent number: 5044730
    Abstract: The present invention is a device for generating a plurality of colors of light from a light source. The device includes a plurality of filters to separate the light at predetermined wavelengths and to recombine them at different amplitudes to generate a predetermined color hue in the visible spectrum of light.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: September 3, 1991
    Assignee: Artifex Corporation
    Inventors: Thomas F. LaDuke, Joel D. Gruber, Richard Romano