Patents by Inventor John F. Van Deriofske III

John F. Van Deriofske 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).

  • Optical stack and lightguides
    Patent number: 8942522
    Abstract: Optical stack is disclosed. The optical stack includes a first optical stack that includes, a first optical adhesive layer, and a reflective polarizer layer that is disposed on the first optical adhesive layer. The reflective polarizer layer substantially reflects light of a first polarization state and substantially transmits light of a second polarization state orthogonal to the first polarization state. The optical stack also includes a second optical stack that includes a second optical adhesive layer, a low index layer that is disposed on the second optical adhesive layer and includes a plurality of voids dispersed in a binder, and a light directing film that is disposed on the low index layer and includes a plurality of unitary discrete structures. Portions of each unitary discrete structure penetrate into the first optical adhesive layer. Portions of each unitary discrete structure do not penetrate into the first optical adhesive layer.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: January 27, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: William F. Edmonds, Tao Liu, John F. Van Deriofske, III, John A. Wheatley
  • OPTICAL STACK AND LIGHTGUIDES
    Publication number: 20130022315
    Abstract: Optical stack is disclosed. The optical stack includes a first optical stack that includes, a first optical adhesive layer, and a reflective polarizer layer that is disposed on the first optical adhesive layer. The reflective polarizer layer substantially reflects light of a first polarization state and substantially transmits light of a second polarization state orthogonal to the first polarization state. The optical stack also includes a second optical stack that includes a second optical adhesive layer, a low index layer that is disposed on the second optical adhesive layer and includes a plurality of voids dispersed in a binder, and a light directing film that is disposed on the low index layer and includes a plurality of unitary discrete structures. Portions of each unitary discrete structure penetrate into the first optical adhesive layer. Portions of each unitary discrete structure do not penetrate into the first optical adhesive layer.
    Type: Application
    Filed: April 11, 2011
    Publication date: January 24, 2013
    Inventors: William F. Edmonds, Tao Liu, John F. Van Deriofske III, John A. Wheatley