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. 24, 2006
Filed:
Jul. 01, 2003
Yoshiyuki Uemura, Osaka, JP;
Takashi Kishimoto, Osaka, JP;
Kozo Fujimura, Osaka, JP;
Tomihisa Saito, Osaka, JP;
Masafumi Taguchi, Osaka, JP;
Yoshiyuki Uemura, Osaka, JP;
Takashi Kishimoto, Osaka, JP;
Kozo Fujimura, Osaka, JP;
Tomihisa Saito, Osaka, JP;
Masafumi Taguchi, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
A light guideof a rectangular cross-section has side facesincluding short sides in the longitudinal direction of which one side faceis provided with a light-scattering pattern, formed by screen-printing in white paint, for scattering the light incident to the light guide. The other side facefacing the side faceis exposed from a casingto serve as a light-emitting surface. In the present embodiment, it is possible to secure a sufficient amount of light because the whole area of the side face is used as the light-emitting surface. The remaining side facesof the light guideare side faces including the long sides. Since the side faceseasily produce a surface sink during molding, neither the light-scattering patternnor the light-emitting surface is provided thereon.