Patents by Inventor Quyen Tu Le

Quyen Tu Le 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).

  • Off center motor, ground glass on center post with ball bearing(S), X-Y image position adjustment and on-the-fly back focus adjustment with lock down on 35mm spinning ground glass adapters
    Patent number: 8155513
    Abstract: A video camera, having a body which supports a Depth of Field adapter and contains an image recording device comprises imaging optics having a disk shaped ground glass for rendering visible a real image; a rotatable post having a first end coupled to the ground glass at its center and a second end coupled to the body of the Depth of Field adapter; and a motor coupled to rotate the rotatable post to urge the ground glass to rotate, and where the Depth of Field adapter comprises first and second tubes which, when aligned, form a front tube of the Depth of Field adapter; a coupling ring coupled to align and join the first tube with the second tube; and a support member coupled to the first and second tubes to position the first and second tubes to be at the front of the optical path of the camera.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: April 10, 2012
    Inventors: Hien Tu Le, Quyen Tu Le
  • OFF CENTER MOTOR, GROUND GLASS ON CENTER POST WITH BALL BEARING(S), X-Y IMAGE POSITION ADJUSTMENT AND ON-THE-FLY BACK FOCUS ADJUSTMENT WITH LOCK DOWN ON 35mm SPINNING GROUND GLASS ADAPTERS
    Publication number: 20090256920
    Abstract: A video camera, having a body which supports a Depth of Field adapter and contains an image recording device comprises imaging optics having a disk shaped ground glass for rendering visible a real image; a rotatable post having a first end coupled to the ground glass at its center and a second end coupled to the body of the Depth of Field adapter; and a motor coupled to rotate the rotatable post to urge the ground glass to rotate, and where the Depth of Field adapter comprises first and second tubes which, when aligned, form a front tube of the Depth of Field adapter; a coupling ring coupled to align and join the first tube with the second tube; and a support member coupled to the first and second tubes to position the first and second tubes to be at the front of the optical path of the camera.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 15, 2009
    Applicant: Letus Corporation
    Inventors: Hien Tu Le, Quyen Tu Le