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:
Jun. 23, 2015
Filed:
Jun. 08, 2012
Eiichi Sato, Hachioji, JP;
Ken Sato, Hachioji, JP;
Hiroyasu Sato, Hachioji, JP;
OPTO DESIGN, INC., Tokyo, JP;
Abstract
An illumination device including a light source device includes a light source being constituted by LED(s); a light source side reflective plate to which the light source is fixed; an emission side reflective plate facing the light source side reflective plate; and a fixing means for fixing the both reflective plates, wherein the emission side reflective plate is formed so that a portion thereof facing the light source has the highest optical reflectance and the lowest optical transmittance while the optical reflectance decreases and the optical transmittance increases farther away from the light source, and the distance between the both reflective plates is greatest at a portion where the light source is disposed, while the distance decreases at portions farther away from the portion where the light source is disposed. Thus the device can supply light in a substantially uniform manner from a light irradiation surface.