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:
Feb. 11, 2014
Filed:
Sep. 14, 2012
Rachael L. Demeio, Gibsonia, PA (US);
David Park, Tuam, IE;
Anil Kumar, Murrysville, PA (US);
Truman Wilt, Clinton, PA (US);
Peter C. Foller, San Francisco, CA (US);
Jiping Shao, Sewickley, PA (US);
Rachael L. DeMeio, Gibsonia, PA (US);
David Park, Tuam, IE;
Anil Kumar, Murrysville, PA (US);
Truman Wilt, Clinton, PA (US);
Peter C. Foller, San Francisco, CA (US);
Jiping Shao, Sewickley, PA (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
Photochromic-dichroic articles are provided, which include a substrate, a first photochromic-dichroic layer over the substrate, and a second photochromic-dichroic layer over the first photochromic-dichroic layer. The first photochromic-dichroic layer includes a first photochromic-dichroic compound that is laterally aligned within the first photochromic-dichroic layer, and which defines a first polarization axis of the first photochromic-dichroic layer. The second photochromic-dichroic layer includes a second photochromic-dichroic compound that is laterally aligned within the second photochromic-dichroic layer, and which defines a second polarization axis of the second photochromic-dichroic layer. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, a combination of increased optical density and increased kinetics when exposed to a given amount of actinic radiation.