Patents by Inventor Lloyd C. Bobb

Lloyd C. Bobb 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).

  • Method of changing the frequency of a laser beam
    Patent number: 4056290
    Abstract: The frequency of a laser beam can be changed by directing the laser beam through a crystal that has paraelectric and ferroelectric states, above and below a Curie transition temperature, respectively. The crystal is maintained at a constant temperature slightly above its Curie transition temperature when no change in the frequency of the laser beam is desired; and a voltage is applied across the crystal to drive it from its paraelectric into its ferroelectric state when a relatively large change in the frequency of the laser beam is desired.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: November 1, 1977
    Assignee: The Government of the United States as represented by the Secretary of the Army
    Inventors: Lloyd C. Bobb, Kimball Kramer