Patents by Inventor Davd A. Smith

Davd A. Smith 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).

  • Multi-focal augmented reality lenses
    Patent number: 9170425
    Abstract: A lens includes a reflective inside surface including a first inside surface portion having an optical surface which focuses an incident beam of a first image so that objects in the first image appears at a first virtual distance, and at least a second inside surface portion having an optical surface which focuses an incident beam of a second image so that objects in the second image to appear at a second virtual distance that is further than the first virtual distance. The lens is a passive lens. The lens can be used in an optical see-through head mounted display (HMD) apparatus to allow a user of the HMD to focus on nearby virtual objects coming from the first inside surface portion while viewing nearby external-world objects and to focus on more distant virtual objects coming from the second inside surface portion while viewing more distant external-world objects.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: October 27, 2015
    Assignee: Lockheed Martin Corporation
    Inventors: Gregory A. Harrison, Davd A. Smith