发明授权
US08833991B2 Light emitting device, with light guide member having smaller exit section, and illuminating device, and vehicle headlight including the same
有权
具有较小出口部分的导光部件和照明装置的发光装置以及包括该发光装置的车辆头灯
- 专利标题： Light emitting device, with light guide member having smaller exit section, and illuminating device, and vehicle headlight including the same
- 专利标题（中）： 具有较小出口部分的导光部件和照明装置的发光装置以及包括该发光装置的车辆头灯
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申请号： US13023300申请日： 2011-02-08
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公开(公告)号： US08833991B2公开(公告)日： 2014-09-16
- 发明人: Katsuhiko Kishimoto , Koji Takahashi , Shigetoshi Ito , Hidenori Kawanishi
- 申请人： Katsuhiko Kishimoto , Koji Takahashi , Shigetoshi Ito , Hidenori Kawanishi
- 申请人地址： JP Osaka-shi, Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka-shi, Osaka
- 代理机构： Morrison & Foerster LLP
- 优先权： JP2010-028176 20100210
- 主分类号： B60Q1/04
- IPC分类号： B60Q1/04 ; F21V8/00
摘要：
A light emitting device of the present invention includes: a laser diode group which generates a plurality of laser beams; a cylindrical light emitting element which emits incoherent light in response to the plurality of laser beams; and a light guide irradiation section which (i) guides the plurality of laser beams entered via a light incidence plane toward a light irradiation plane and (ii) irradiates the light irradiation area of the cylindrical light emitting element with the plurality of laser beams thus guided. The light irradiation plane of the light guide irradiation section has an area which is smaller than that of the light incidence plane.
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