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. 17, 2011
Filed:
Dec. 27, 2006
Takeshi Ishimaru, Tokyo, JP;
Takashi Kishimoto, Tokyo, JP;
Hidemitsu Takeuchi, Tokyo, JP;
Tomihisa Saito, Tokyo, JP;
Hideki Azuma, Tokyo, JP;
Takahiro Hashimoto, Tokyo, JP;
Takeshi Ishimaru, Tokyo, JP;
Takashi Kishimoto, Tokyo, JP;
Hidemitsu Takeuchi, Tokyo, JP;
Tomihisa Saito, Tokyo, JP;
Hideki Azuma, Tokyo, JP;
Takahiro Hashimoto, Tokyo, JP;
Nippon Sheet Glass Compny, Limited, Tokyo, JP;
Abstract
A rod- or plate-shaped light guide includes a first end that receives illuminating light incident thereon, a bottom surface having a reflecting portion thereon for reflecting the light, an emitting face which emits the reflected light, and a protruding portion protruding longitudinally and continuously from the light guide at a second end thereof. The protruding portion has a reduced peripheral dimension compared to a peripheral dimension of an adjacent portion of the light guide, and a reflective body is provided on the protruding portion and covers a longitudinal end face of the protruding portion extending perpendicular to the emitting face. When viewed along an axial direction of the light guide, the reflective body does not jut out from an end face of the light guide even when the body wraps on to a side surface of the protruding portion or expansion occurs.