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:
Aug. 24, 2010
Filed:
Sep. 18, 2007
Yasushi Hattori, Kawasaki, JP;
Shinji Saito, Yokohama, JP;
Sinya Nunoue, Ichikawa, JP;
Genichi Hatakoshi, Yokohama, JP;
Koichi Tachibana, Kawasaki, JP;
Naomi Shida, Minato-ku, JP;
Iwao Mitsuishi, Machida, JP;
Yasushi Hattori, Kawasaki, JP;
Shinji Saito, Yokohama, JP;
Sinya Nunoue, Ichikawa, JP;
Genichi Hatakoshi, Yokohama, JP;
Koichi Tachibana, Kawasaki, JP;
Naomi Shida, Minato-ku, JP;
Iwao Mitsuishi, Machida, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A light emitting device includes a light emitting element emitting an excitation light and a fluorescent element. The fluorescent element includes a semi-translucent film facing the light emitting element, and transmits the excitation light; a first luminescent film including phosphors to absorb the excitation light transmitted through the semi-translucent film and to emit a visible light having a different wavelength than the excitation light; and a reflection film disposed on an opposite side of the first luminescent film on which the semi-translucent film is disposed, reflecting the excitation light transmitted through the first luminescent film towards the first luminescent film.