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. 20, 2008
Filed:
Nov. 09, 2005
Tsuyoshi Uemura, Kanazawa, JP;
Satoshi Okutani, Ishikawa-gun, JP;
Hirofumi Kubota, Kanazawa, JP;
Muneharu Akiyoshi, Saitama, JP;
Naotada Okada, Yokohama, JP;
Junichi Tonotani, Yokohama, JP;
Tsuyoshi Uemura, Kanazawa, JP;
Satoshi Okutani, Ishikawa-gun, JP;
Hirofumi Kubota, Kanazawa, JP;
Muneharu Akiyoshi, Saitama, JP;
Naotada Okada, Yokohama, JP;
Junichi Tonotani, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
An optical device includes a first waveguide layer in which multiple-beam interference occurs, a second wavelength layer which includes a back surface facing the first waveguide layer and a front surface as a light output surface, and an outcoupling layer which is disposed on a back side of the second waveguide layer and faces the first wave guide layer, wherein the outcoupling layer includes a first portion as a layer with light transmission property and second portions which are dispersed in the first portion and differ in optical property from the first portion, and wherein an array of the second portions forms a triangular lattice.