发明申请
- 专利标题: Light emitting device provided with lens for controlling light distribution characteristic
- 专利标题(中): 具有用于控制配光特性的透镜的发光装置
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申请号: US11356276申请日: 2006-02-17
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公开(公告)号: US20060186431A1公开(公告)日: 2006-08-24
- 发明人: Tomohide Miki , Kenji Takine , Ryohei Yamashita
- 申请人: Tomohide Miki , Kenji Takine , Ryohei Yamashita
- 申请人地址: JP Anan-shi
- 专利权人: NICHIA CORPORATION
- 当前专利权人: NICHIA CORPORATION
- 当前专利权人地址: JP Anan-shi
- 优先权: JP2005-042533 20050218; JP2005-042543 20050218
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
The light emitting device comprises a substrate (2), a positive electrode (6) and a negative electrode (4) formed on the substrate (2), a light emitting diode (8) connected to the positive electrode (6) and the negative electrode (4), the transparent resin (12 and 14) that covers the light emitting diode (8), a fluorescent material (16) that absorbs at least part of light emitted by the light emitting diode (8) and converts it to light of longer wavelength, and the lens that changes the direction of light emission from the light emitting diode (8) and/or the fluorescent material (16). The resin (12 and 14) includes the fluorescent material (16) and is formed so as to constitute the lens of substantially semi-cylindrical shape, and the fluorescent material (16) included in the resin (12 and 14) is distributed with a higher concentration in a region near the surface of the light emitting diode (8) than in a region near the surface of the portion that constitutes the lens.
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