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. 25, 2011
Filed:
Jun. 15, 2006
Suguru Takashima, Anan, JP;
Masato Aihara, Anan, JP;
Junji Takeichi, Anan, JP;
Takahiro Naitou, Anan, JP;
Hiroto Tamaki, Anan, JP;
Tomohisa Kishimoto, Anan, JP;
Suguru Takashima, Anan, JP;
Masato Aihara, Anan, JP;
Junji Takeichi, Anan, JP;
Takahiro Naitou, Anan, JP;
Hiroto Tamaki, Anan, JP;
Tomohisa Kishimoto, Anan, JP;
Nichia Corporation, Anan-shi, JP;
Abstract
A light emitting device includes a wavelength converting member for absorbing light emitted by an exciting light source and emitting light of a different wavelength. With a wavelength at which the light from the exciting light source has a maximum energy intensity denoted as a first wavelength, a wavelength at which the light from the wavelength converting member has a maximum energy intensity denoted as a second wavelength, a wavelength lying between the first and second wavelengths at which the light from the light emitting device has a minimum energy intensity denoted as a third wavelength, and 650 nm denoted as a fourth wavelength, then the light emitting device has an emission spectrum such that the proportion of the energy intensity at the first wavelength to the energy intensity at the third wavelength is in a range from 100:15 to 100:150, and the proportion of the energy intensity at the first wavelength to the energy intensity at the fourth wavelength is in a range from 100:45 to 100:200.