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:
Apr. 12, 2005
Filed:
Sep. 13, 1999
Yutaka Sawayama, Tenri, JP;
Yukihiro Sumida, Yamatokoriyama, JP;
Takeshi Masuda, Tenri, JP;
Tsuyoshi Ebi, Nara, JP;
Yutaka Sawayama, Tenri, JP;
Yukihiro Sumida, Yamatokoriyama, JP;
Takeshi Masuda, Tenri, JP;
Tsuyoshi Ebi, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Featured are a front-illuminating device including a light source and first and second light-directing bodies. The first light-directing body is disposed in front of an object to be illuminated and has a first light-releasing surface from which light is released to the object to be illuminated and a second light-releasing surface, placed face to face with the first light-releasing surface, for releasing light reflected from the object to be illuminated. The second light-releasing surface also is formed into a step shape and includes slanting portions that reflect light mainly from the light source toward the first light-releasing surface. The second light-directing body is disposed between the first light-directing body and the object to be illuminated and is configured and arranged so a distance from each of the slanting portions to the surface of the second light-directing body second surface is essentially uniform.