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. 19, 2010
Filed:
May. 21, 2008
Akihiro Misawa, Aichi-ken, JP;
Tetsuya Arakawa, Aichi-ken, JP;
Tatsuya Oba, Aichi-ken, JP;
Akihiko Ishikawa, Aichi-ken, JP;
Akihiro Misawa, Aichi-ken, JP;
Tetsuya Arakawa, Aichi-ken, JP;
Tatsuya Oba, Aichi-ken, JP;
Akihiko Ishikawa, Aichi-ken, JP;
Toyoda Gosei Co., Ltd., Nishikasugai-gun, Aichi-ken, JP;
Abstract
A vehicle-purpose lighting tool is featured by comprising: a light-conducting member having a front light-emitting plane, a rear plane having a concave/convex shape, and a side edge plane; and a light source arranged at a position opposite to the side edge plane; in which within external light which is entered via the front light-emitting plane into the light-conducting member, a portion of the external light which is directly traveled to the side edge plane is totally reflected on a boundary plane of the side edge plane portion; a plurality of reflecting portions are formed on the rear plane and are coupled to each other via a coupling portion in such a direction that the reflecting portions are separated apart from the side edge plane side; and distances between the plurality of reflecting portions and the front light-emitting plane are changed in a discontinuous manner along the separating direction.