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:
Oct. 22, 2013
Filed:
Jul. 16, 2012
Milan Momcilo Popovich, Leicester, GB;
Jonathan David Waldern, Los Altos Hills, CA (US);
John James Storey, Wollaton Nottingham, GB;
Milan Momcilo Popovich, Leicester, GB;
Jonathan David Waldern, Los Altos Hills, CA (US);
John James Storey, Wollaton Nottingham, GB;
SBG Labs, Inc., Sunnyvale, CA (US);
Abstract
An Electrically Switchable Bragg Grating (ESBG) despeckler device comprising at least one ESBG element recorded in a hPDLC sandwiched between transparent substrates to which transparent conductive coatings have been applied. At least one of said coatings is patterned to provide a two-dimensional array of independently switchable ESBG pixels. Each ESBG pixel has a first unique speckle state under said first applied voltage and a second unique speckle state under said second applied voltage.