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:
Feb. 01, 2005
Filed:
Jul. 12, 2002
Hiroichi Ishikawa, Kanagawa, JP;
Hiroichi Ishikawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided is an optical multilayer structure having a simpler configuration, flexibility in selection of materials and improved reliability in wiring and capable of high-speed response even in a visible light range. A optical multilayer structure () has a first layer () being light-absorptive and making contact with a substrate (), a gap portion () having as large a size as light interference phenomenon can occur and being capable of varying the size, and a second layer () being transparent in this order on the substrate (). Where a complex refractive index of the first layer () is N(=n−i·k, nis a refractive index, kis an extinction coefficient, and i is an imaginary unit), a refractive index of the second layer () is n, and a refractive index of an incident medium is 1.0, the optical multilayer structure () is configured so as to satisfy the following formula.