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:
Oct. 20, 2009
Filed:
Apr. 04, 2007
Seiji Sakai, Tokyo, JP;
Takuya Sakamoto, Koshi, JP;
Seiji Sakai, Tokyo, JP;
Takuya Sakamoto, Koshi, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A surface light-source device includes: a plurality of point light sources; a light-guide plate arranged for emitting from its emitting surface the light incident on one lateral side thereof from the point light sources; a lower case having a lateral side formed approximately in parallel to the incident surface of the light-guide plate; and a light-source substrate on which the plurality of point light sources are arranged at predetermined intervals, disposed on the light-guide plate side. The surface light-source device is includes a substrate holder that clamps the light-source substrate and the lateral side of the lower case by projections arranged on the substrate holder between adjacent two of the light sources.