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. 01, 2012
Filed:
Dec. 19, 2008
Yoshinori Murazaki, Anan, JP;
Shinpei Kinoshita, Anan, JP;
Masatoshi Kameshima, Anan, JP;
Suguru Takashima, Anan, JP;
Hiroto Tamaki, Anan, JP;
Yoshinori Murazaki, Anan, JP;
Shinpei Kinoshita, Anan, JP;
Masatoshi Kameshima, Anan, JP;
Suguru Takashima, Anan, JP;
Hiroto Tamaki, Anan, JP;
Nichia Corporation, Anan-shi, JP;
Abstract
A lamp includes a light-emitting body that converts electric energy into light energy and a translucent glass covering the light-emitting body, wherein a phosphor layer is provided on at least inner or outer surface of the translucent glass. The phosphor layer includes a fluorescent material including a first phosphor that at least partially converts energy emitted by an excitation source, which emits ultraviolet having a wavelength of about 365 nm, to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum. Peak wavelengths of the emission spectrum of the first and second phosphors have a relation of complementary colors so that when the light created due to the peak wavelengths of the first and second phosphors are mixed, the resulting light is in the white region.