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:
Jul. 12, 2011
Filed:
Oct. 31, 2006
Anil Kumar, Pittsburgh, PA (US);
Peter C. Foller, Murrysville, PA (US);
Forrest R. Blackburn, Monroeville, PA (US);
Jiping Shao, Monroeville, PA (US);
Meng He, Murrysville, PA (US);
Terry A. Kellar, Ii, Monroeville, PA (US);
Anil Kumar, Pittsburgh, PA (US);
Peter C. Foller, Murrysville, PA (US);
Forrest R. Blackburn, Monroeville, PA (US);
Jiping Shao, Monroeville, PA (US);
Meng He, Murrysville, PA (US);
Terry A. Kellar, II, Monroeville, PA (US);
Transitions Optical, Inc., Pinellas Park, FL (US);
Abstract
A liquid crystal cell including a first substrate having a first surface; a second substrate having a second surface, wherein the second surface of the second substrate is opposite and spaced apart from the first surface of the first substrate so as to define a region; and within the region defined by the first surface and the second surface, a liquid crystal material adapted to be at least partially ordered and at least one thermally reversible photochromic-dichroic compound adapted to be at least partially aligned and having an average absorption ratio greater than 2.3 in an activated state.