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:
Mar. 05, 2013
Filed:
May. 21, 2009
Applicants:
Chang-soo Han, Daejeon, KR;
Jin-won Song, Daejeon, KR;
Joon-dong Kim, Daejeon, KR;
Inventors:
Assignee:
Korea Institute of Machinery & Materials, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vision assistance device includes a lens based on a transparent material, a conductive transparent thin film contacting the lens and containing carbon nanotubes, electrodes electrically connected to the conductive transparent thin film, and a portable power supply electrically connected to the electrodes. The vision assistance device prevents fogging and retains heat.