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, 2011
Filed:
Feb. 23, 2006
Masami Okamura, Kanagawa-Ken, JP;
Masaaki Tamatani, Kanagawa-Ken, JP;
Naomi Shida, Tokyo, JP;
Kazuaki Ootsuka, Kanagawa-Ken, JP;
Yukihiro Fukuta, Kanagawa-Ken, JP;
Masami Okamura, Kanagawa-Ken, JP;
Masaaki Tamatani, Kanagawa-Ken, JP;
Naomi Shida, Tokyo, JP;
Kazuaki Ootsuka, Kanagawa-Ken, JP;
Yukihiro Fukuta, Kanagawa-Ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama-Shi, JP;
Abstract
The present invention relates to a light emitting apparatus including a semiconductor light emitting element and a transparent ceramic phosphor for converting a wavelength of a light emitted from the semiconductor light emitting element, wherein the semiconductor light emitting element emits an ultraviolet light, and the ceramic phosphor corresponding to the semiconductor light emitting element has (i) a minimum transmission of 0.1 to 40% under a wavelength of 350-420 nm and (ii) a transmission of 10 to 90% under an emission peak wavelength of the ceramic phosphor.