Patents by Inventor Perry Jeung

Perry Jeung 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).

  • Optical bar code reader
    Patent number: 4143809
    Abstract: An optical bar code reader is provided employing a dual focusing system in which a source of light is focused by a first lens to a small area of the bar code, which reflects the light back through a second lens to a detector. In preferred embodiments of the invention the source and detector are solid state semiconductors mounted on the same substrate, while the focusing lenses are integrally molded as part of a single lens support. Spherical aberration is minimized by utilizing aspheric lenses.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: March 13, 1979
    Assignee: Hewlett-Packard Company
    Inventors: John J. Uebbing, Perry Jeung