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:
Jul. 07, 2009
Filed:
Jul. 24, 2006
Applicants:
Mitsuhiro Nawashiro, Aichi-ken, JP;
Satoshi Inagaki, Aichi-ken, JP;
Inventors:
Mitsuhiro Nawashiro, Aichi-ken, JP;
Satoshi Inagaki, Aichi-ken, JP;
Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai-gun, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 9/00 (2006.01); H01L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light source device includes a light emitting diode (LED) device, a lens and a light diffusing layer. The LED device includes an LED chip, which emits light, and a fluorescent, which converts a part of the light from the LED chip. The lens is located on a side of a light emitting face of the LED device. The light diffusing layer is located between the LED device and the lens. An air layer exists between the light diffusing layer and the LED device or between the light diffusing layer and the lens.