The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2014
Filed:
May. 02, 2012
Paul G Dewa, Newark, NY (US);
Michael M Dunn, Palmtya, NY (US);
Stephen K Mack, Rush, NY (US);
Brian Monroe Mcmaster, Pittsford, NY (US);
Robert L Michaels, Rochester, NY (US);
Paul Francis Michaloski, Rochester, NY (US);
Paul G Dewa, Newark, NY (US);
Michael M Dunn, Palmtya, NY (US);
Stephen K Mack, Rush, NY (US);
Brian Monroe McMaster, Pittsford, NY (US);
Robert L Michaels, Rochester, NY (US);
Paul Francis Michaloski, Rochester, NY (US);
Corning Incorporated, Corning, NY (US);
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.