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. 06, 2012
Filed:
Sep. 15, 2010
Michiyori Miura, Shinjuku-ku, JP;
Toshiaki Sonehara, Shinjuku-ku, JP;
Hideo Kobayashi, Shinjuku-ku, JP;
Mitsuhiro Kureishi, Shinjuku-ku, JP;
Michiyori Miura, Shinjuku-ku, JP;
Toshiaki Sonehara, Shinjuku-ku, JP;
Hideo Kobayashi, Shinjuku-ku, JP;
Mitsuhiro Kureishi, Shinjuku-ku, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A polarization element has a polarizer with an aggregate of metal pieces: Plasmon resonance frequency of a metal piece varies according to the polarization direction of a irradiated on it. In the polarization element, the plasmon resonance frequency in a predetermined direction of a metal piece is substantially equal to the frequency of light irradiated on the polarization element. The real part and the imaginary part of permittivity at the plasmon resonance frequency of a metal piece's constituent material and the refractive index (na) of a dielectric layer satisfy a particular relation.