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. 16, 2012
Filed:
Feb. 22, 2010
Masaya Ishida, Mihara, JP;
Tatsuya Morioka, Ikoma, JP;
Daisuke Hanaoka, Souraku-Gun, JP;
Mototaka Taneya, Nara, JP;
Shigeo Fujita, Kyoto, JP;
Yoichi Kawakami, Kusatsu, JP;
Masafumi Harada, Narashi, JP;
Takatomo Sasaki, Suita, JP;
Yusuke Mori, Katano, JP;
Masaya Ishida, Mihara, JP;
Tatsuya Morioka, Ikoma, JP;
Daisuke Hanaoka, Souraku-Gun, JP;
Mototaka Taneya, Nara, JP;
Shigeo Fujita, Kyoto, JP;
Yoichi Kawakami, Kusatsu, JP;
Masafumi Harada, Narashi, JP;
Takatomo Sasaki, Suita, JP;
Yusuke Mori, Katano, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A light-emitting apparatus composed of a light source that emits primary light and a phosphor that absorbs the primary light and emits secondary light offers high brightness, low power consumption, and a long lifetime while minimizing adverse effects on the environment. The phosphor is formed of a III-V group semiconductor in the form of fine-particle crystals each having a volume of 2 800 nmor less. The light emitted from the fine-particle crystals depends on their volume, and therefore giving the fine-particle crystals a predetermined volume distribution makes it possible to adjust the wavelength range of the secondary light.