Patents by Inventor Alga Lloyd Northern, III

Alga Lloyd Northern, III 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).

  • Devices and methods for speckle reduction in scanning projectors
    Patent number: 10108022
    Abstract: Devices and methods are described herein that use a first solid figure element, a polarizing beam splitter, and a second solid figure element or array of mirrors to reduce speckle in projected images. Specifically, laser light is generated and split into two portions having orthogonal polarizations. The first portion of laser light is reflected in the second solid figure element or the array of mirrors and is then spatially recombined with the second portion of laser light in the first solid figure element. The difference in path length followed by the two portions generates a temporal incoherence in the recombined laser light beam, and that temporal incoherence reduces speckle in the projected image.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 23, 2018
    Assignee: Microvision, Inc.
    Inventors: Matthieu Saracco, Roeland Collet, Alga Lloyd Northern, III