Patents by Inventor Stephen K. Mack

Stephen K. Mack 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).

  • Broadband polarization switching
    Patent number: 8830581
    Abstract: A polarization switching apparatus has a first birefringent polarizer formed as a composite prism and disposed to direct incident light of a first polarization along a first optical path and light of a second polarization along a second optical path, wherein the second optical path is oblique to the first optical path. A beam redirector is disposed to redirect the first optical path from the first birefringent polarizer toward an input face of a second birefringent polarizer; wherein the second birefringent polarizer is also formed as a composite prism and is disposed to combine incident light of the first and second polarizations onto a common output path. A shutter apparatus is actuable to selectively block light of the first polarization or light of the second polarization from the input face of the second birefringent polarizer.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 9, 2014
    Assignee: Corning Incorporated
    Inventors: Paul G Dewa, Michael M Dunn, Stephen K Mack, Brian Monroe McMaster, Robert L Michaels, Paul Francis Michaloski
  • BROADBAND POLARIZATION SWITCHING
    Publication number: 20130070331
    Abstract: A polarization switching apparatus has a first birefringent polarizer formed as a composite prism and disposed to direct incident light of a first polarization along a first optical path and light of a second polarization along a second optical path, wherein the second optical path is oblique to the first optical path. A beam redirector is disposed to redirect the first optical path from the first birefringent polarizer toward an input face of a second birefringent polarizer; wherein the second birefringent polarizer is also formed as a composite prism and is disposed to combine incident light of the first and second polarizations onto a common output path. A shutter apparatus is actuable to selectively block light of the first polarization or light of the second polarization from the input face of the second birefringent polarizer.
    Type: Application
    Filed: May 2, 2012
    Publication date: March 21, 2013
    Inventors: Paul G. Dewa, Michael M. Dunn, Stephen K. Mack, Brian Monroe McMaster, Robert L. Michaels, Paul Francis Michaloski