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:
Jul. 15, 2008
Filed:
Nov. 28, 2003
Seiichi Katou, Tsuchiura, JP;
Katsuhiko Kimura, Chiyoda, JP;
Teruhisa Akashi, Moriya, JP;
Kazuyuki Fukuda, Chiyoda, JP;
Ryoji Okada, Chiyoda, JP;
Hiromitsu Imamiya, Yokohama, JP;
Toshio Sugiyama, Yokohama, JP;
Hideo Suenaga, Yokohama, JP;
Seiichi Katou, Tsuchiura, JP;
Katsuhiko Kimura, Chiyoda, JP;
Teruhisa Akashi, Moriya, JP;
Kazuyuki Fukuda, Chiyoda, JP;
Ryoji Okada, Chiyoda, JP;
Hiromitsu Imamiya, Yokohama, JP;
Toshio Sugiyama, Yokohama, JP;
Hideo Suenaga, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Media Electronics Co., Ltd., Mizusawa-Shi, JP;
Abstract
An optical device wherein an optical component and a plurality of light emitting elements are mounted on an identical substrate, a level of a surface on which the optical component is mounted is different from that of a surface on which the light emitting elements are mounted by a step provided on the substrate, at least one plane vertical to the surface on which the optical component is mounted and located on a periphery of the substrate is opened, a reflecting surface, a transmitting surface or a diffraction grating surface of the optical component is provided along sides generated by the step provided in the substrate, optical axes of the plurality of light emitting elements of which polarization axes are in parallel with each other intersect with each other on the surface, and an exit light beam of the light emitting elements is emitted from the opened plane.