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:
May. 02, 2017
Filed:
Jan. 30, 2014
Electronics and Telecommunications Research Institute, Daejeon, KR;
Sun-Tak Park, Daejeon, KR;
Bong-Je Park, Daejeon, KR;
Ki-Uk Kyung, Seoul, KR;
Sung-Ryul Yun, Daejeon, KR;
Sae-Kwang Nam, Daegu, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUE, Daejeon, KR;
Abstract
An active diffuser for reducing a speckle in accordance with an embodiment of the present invention includes: an electroactive polymer film having at least one or more scattering patterns; a first transparent electrode coated on one surface of the electroactive polymer film; and a second transparent electrode coated on the other surface of the electroactive polymer film, and a shape of the scattering pattern of the electroactive polymer film is varied by voltage applied through the first transparent electrode and the second transparent electrode.