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Title:
LIGHT-EMITTING DIODE, LIGHT-EMITTING DIODE LAMP AND LUMINAIRE
Document Type and Number:
Japanese Patent JP2012038997
Kind Code:
A
Abstract:

To provide a rapid response and high output light-emitting diode which emits red light and/or infrared light, and to provide a light-emitting diode lamp and a luminaire.

The light-emitting diode comprises: a light emission part which includes an active layer of quantum well structure where a well layer consisting of a compound semiconductor having a composition formula of (AlX1Ga1-X1)As(0≤X1≤1) and a barrier layer are laminated alternately, and which includes a first clad layer and a second clad layer sandwiching the active layer; a current diffusion layer formed on the light emission part; and a functional substrate bonded to the current diffusion layer. The first and second clad layers consist of a compound semiconductor having a composition formula of (AlX2Ga1-X2)Y1In1-Y1 P(0≤X2≤1, 0<Y1≤1), and the number of pairs of the well layer and barrier layer is 5 or less.


Inventors:
AIHARA NORIYUKI
Application Number:
JP2010179475A
Publication Date:
February 23, 2012
Filing Date:
August 10, 2010
Export Citation:
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Assignee:
SHOWA DENKO KK
International Classes:
H01L33/04
Domestic Patent References:
JPH0722713A1995-01-24
JP2007201300A2007-08-09
JP2000101132A2000-04-07
JP2006066518A2006-03-09
JP2004207508A2004-07-22
JP2007194536A2007-08-02
JP2008532281A2008-08-14
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama