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. 08, 2015
Filed:
Oct. 28, 2013
Applicants:
Giorgio Trapani, Cambridge, MA (US);
Robert K. Tendler, Chestnut Hill, MA (US);
Inventors:
Giorgio Trapani, Cambridge, MA (US);
Robert K. Tendler, Chestnut Hill, MA (US);
Assignee:
Distributed Polarization Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/12 (2006.01);
U.S. Cl.
CPC ...
G02C 7/12 (2013.01);
Abstract
In the manufacture of gradient polarized sunglasses an optical retarder is used in front of a portion of a polarized lens to destroy the linear polarization of incoming light to render that portion of the sunglass lens non-polarized, thus to permit viewing of polarized displays through that non-polarized portion of the polarized sunglass lens.