发明申请
- 专利标题: Light emitting device using light emitting diode chip
- 专利标题(中): 发光装置采用发光二极管芯片
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申请号: US10596019申请日: 2004-11-25
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公开(公告)号: US20070085103A1公开(公告)日: 2007-04-19
- 发明人: Kouji Nishioka , Masaru Sugimoto , Hideyoshi Kimura , Ryoji Yokotani , Yutaka Iwahori , Takuma Hashmoto , Shinya Ishizaki , Satoshi Mori , Hiroyuki Sekii , Eiji Shiohama
- 申请人: Kouji Nishioka , Masaru Sugimoto , Hideyoshi Kimura , Ryoji Yokotani , Yutaka Iwahori , Takuma Hashmoto , Shinya Ishizaki , Satoshi Mori , Hiroyuki Sekii , Eiji Shiohama
- 申请人地址: JP Osaka
- 专利权人: MATSUSHITA ELECTRIC WORKS, LTD.
- 当前专利权人: MATSUSHITA ELECTRIC WORKS, LTD.
- 当前专利权人地址: JP Osaka
- 优先权: JP2003/394230 20031125; JP2003/394532 20031125; JP2003/400074 20031128
- 国际申请: PCT/JP04/17509 WO 20041125
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
A light emitting device comprises: an LED chip mounted in a recess formed in a mounting substrate; a wavelength converting member that is disposed so as to cover the recess and the edge area around the recess and that is excited by light emitted from the LED chip to emit light of a wavelength different from an excitation wavelength; and an emission control member disposed at a light output side of the wavelength converting member so as to allow emission of light coming from an area of the wavelength converting member that corresponds to the recess and to prevent emission of light coming from an area of the wavelength converting member that corresponds to the edge area around the recess. This can prevent variations in color between light emitted from the central part of the wavelength converting member and light emitted from the part of the wavelength converting member that is located on the edge area around the recess of the mounting substrate, thereby reducing unevenness of color on the irradiation surface.
公开/授权文献
- US07717589B2 Light emitting device using light emitting diode chip 公开/授权日:2010-05-18
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