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:
Dec. 09, 2014
Filed:
Dec. 18, 2009
Applicants:
Stephen Kitson, Alveston, GB;
Adrian Geisow, Portishead, GB;
Inventors:
Stephen Kitson, Alveston, GB;
Adrian Geisow, Portishead, GB;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02F 1/1347 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133553 (2013.01); G02F 1/13473 (2013.01); G02F 2201/343 (2013.01); G02B 5/3016 (2013.01);
Abstract
A cholesteric reflector comprising a substrate and a first cholesteric layer that is disposed over the substrate and reflects a first polarization of light within a design waveband. A second cholesteric layer is disposed over the first cholesteric layer and reflects a second polarization of light within the design waveband.