Title:
SEMICONDUCTOR LIGHT EMITTING APPARATUS AND LIGHT SOURCE APPARATUS USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/148176
Kind Code:
A8
Abstract:
A semiconductor light emitting apparatus includes a solid-state light emitting device and a wavelength converter that converts primary light emitted by the solid-state light emitting device into secondary light at a loner-wavelength. The wavelength converter is an inorganic compact that includes a transparent wavelength conversion layer containing phosphor having a garnet crystal structure. The phosphor contains a constituent element group composed of at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Y, La, Gd, Tb, and Lu. Part of the constituent element group is substituted by Ce3+ and the amount of Ce3+ is 1 atomic% less of the entire constituent element group. As a result, a high-power and highly reliable semiconductor light emitting apparatus suitable as a point light source is provided. In addition, such a semiconductor light emitting apparatus is manufactured through a simple application of traditionally used practical technicians.
Inventors:
ISHIMORI ATSUYOSHI
OSHIO SHOZO
UENO YASUHARU
TANIMOTO NORIYASU
OSHIO SHOZO
UENO YASUHARU
TANIMOTO NORIYASU
Application Number:
PCT/JP2009/060407
Publication Date:
October 07, 2010
Filing Date:
June 01, 2009
Export Citation:
Assignee:
PANASONIC CORP (JP)
ISHIMORI ATSUYOSHI
OSHIO SHOZO
UENO YASUHARU
TANIMOTO NORIYASU
ISHIMORI ATSUYOSHI
OSHIO SHOZO
UENO YASUHARU
TANIMOTO NORIYASU
International Classes:
C09K11/77; H01L33/00; H01L33/50
Attorney, Agent or Firm:
NAKAJIMA, Shiro et al. (2-1 Toyosaki 3-chome, Kita-ku, Osaka-sh, Osaka 72, JP)
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