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. 11, 2012
Filed:
Jun. 13, 2011
Tazuko Kitazawa, Osaka, JP;
Tazuko Kitazawa, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, Osaka, JP;
Abstract
A near-field light generating device () which converts incident light into near-field light, includes: a metallic member () made of a metallic material; and a dielectric member () made of a dielectric material, the metallic member () having a first interface () and a second interface () that sandwich the dielectric member (), the first interface () and the second interface () having flections (Pand P), respectively, an inner-interface distance, which is a distance between the first interface () and the second interface (), being minimum at location of the flections (Pand P), and a rate of change of the inner-interface distance between the first interface () and the second interface () being asymmetrical with respect to the flections (Pand P). With the arrangement, it is possible to provide a minute near-field light generating device which can be easily fabricated and which can obtain high-intensity near-field light whose temporal change in intensity is small.