Patents by Inventor Dar-Veig Ho

Dar-Veig Ho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fresnel spiral reflector and method for making same
    Patent number: 4350412
    Abstract: A spiral Fresnel reflector is formed by plotting a predetermined developed spiral on a flat sheet of reflecting material, cutting the flat sheet of reflecting material along the developed spiral and winding up the developed spiral until the spiral arms focus reflective light at a focal area. The developed spiral can have either a positive or a negative focal length.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: September 21, 1982
    Assignee: Georgia Tech Research Institute
    Inventors: Richard A. Steenblik, Dar-Veig Ho