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:
Aug. 28, 2012
Filed:
Jun. 16, 2009
Sean Purdy, Cincinnati, OH (US);
Calum H. Munro, Wexford, PA (US);
Xiangling Xu, Pittsburgh, PA (US);
Sean Purdy, Cincinnati, OH (US);
Calum H. Munro, Wexford, PA (US);
Xiangling Xu, Pittsburgh, PA (US);
PPG Industries Ohio, Inc, Cleveland, OH (US);
Abstract
A radiation diffractive film is disclosed, which includes a viewing surface, with at least a portion of the viewing surface residing in a viewing plane. The film comprises an ordered periodic array of particles received in a matrix material, the array of particles having a crystalline structure, wherein the crystalline structure defines (i) a plurality of first crystal planes of the particles that diffract infrared radiation and (ii) a plurality of second crystal planes of the particles that diffract visible radiation.