Patents by Inventor Walter Hohne

Walter Hohne 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).

  • Apparatus for producing a light beam having a uniform phase front and distance measuring apparatus
    Patent number: 4105332
    Abstract: An apparatus including a frusto-conically shaped tube for transmitting light with internal reflection surfaces which diverge in the direction from input to output. Incident light from an LED or other substantially phase coherent source is mixed by internal reflection of rays incident at greater than a predetermined angle to minimize the non-uniform phase front and concentrate the beam to permit greater transmitted power. The apparatus finds particular utility in distance measuring instruments in which the output of the tube is directed to an object and the phase of the reflected light compared with the phase of the transmitted light to determine the distance.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: August 8, 1978
    Assignee: Precision International, Inc.
    Inventors: Walter Hohne, Robin H. Hines