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:
Dec. 23, 2008
Filed:
Sep. 20, 2006
Applicant:
Masaru Segawa, Kanagawa-ken, JP;
Inventor:
Masaru Segawa, Kanagawa-ken, JP;
Assignee:
Victor Company of Japan, Limited, Yokohama-Shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface light source deviceincludes a base memberprovided with a plurality of point-source lines, each of which has a plurality of point sourcesarranged in a line, and a plurality of diffuse transmission membersfor covering the point-source lines. Each of the diffuse transmission membersis located while keeping substantially equal distances from the respective point sourcesat least in a direction perpendicular to each of the point-source lines. Consequently, it is possible to allow light fluxes emitted from the point sourcesto be transmitted in diffusion through the diffusion transmission members