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. 07, 2017
Filed:
Jan. 12, 2012
Jeremy John Baumberg, Cambridge, GB;
David Snoswell, Cambridge, GB;
Christopher Finlayson, Cambridge, GB;
Qibin Zhao, Cambridge, GB;
Gotz Peter Hellmann, Darmstadt, DE;
Peter Wolfgang Andreas Spahn, Darmstadt, DE;
Christian Gerhard Schafer, Darmstadt, DE;
Jeremy John Baumberg, Cambridge, GB;
David Snoswell, Cambridge, GB;
Christopher Finlayson, Cambridge, GB;
Qibin Zhao, Cambridge, GB;
Gotz Peter Hellmann, Darmstadt, DE;
Peter Wolfgang Andreas Spahn, Darmstadt, DE;
Christian Gerhard Schafer, Darmstadt, DE;
CAMBRIDGE ENTERPRISE LIMITED, Cambridge, GB;
FRAUNHOFER-GESELLSCHAFT ZUR FORDERGUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich, DE;
Abstract
A polymer opal material comprises a three dimensionally periodic arrangement of core particles in a matrix material and exhibits structural color via Bragg reflection. IN a process for manufacturing such a material, a sandwich structure is provided, of a precursor composite material held between first and second sandwiching layers. A relative shear strain of at least 10% is imposed on the precursor composite material by curling the sandwich structure around a roller. The shear strain is cycled, in order to promote the formation of the three dimensional periodic arrangement.