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. 08, 2012
Filed:
Jan. 14, 2011
Tetsuo Inoue, Yokohama, JP;
Hajime Takeuchi, Yokohama, JP;
Yasumasa Ooya, Chigasaki, JP;
Toshio Shimaoogi, Hiratsuka, JP;
Yasuhiro Shirakawa, Yokohama, JP;
Tetsuo Inoue, Yokohama, JP;
Hajime Takeuchi, Yokohama, JP;
Yasumasa Ooya, Chigasaki, JP;
Toshio Shimaoogi, Hiratsuka, JP;
Yasuhiro Shirakawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama-shi, JP;
Abstract
A light emitting deviceincludes a light emitting diode, a phosphor layer containing phosphors that emit a visible light by being excited by a light emitted from the light emitting diode, and a reflector disposed to surround the light emitting diode. A portion of 50% or more in an area ratio of a reflecting surface of the reflector is formed as a scattering surface with a mean square inclination (Δq) (0.1 mm) in a range of not less than 0.003 nor more than 0.03.