发明授权
- 专利标题: White light emitting device
- 专利标题(中): 白色发光装置
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申请号: US12250133申请日: 2008-10-13
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公开(公告)号: US08039850B2公开(公告)日: 2011-10-18
- 发明人: Jeong Wook Lee , Yong Jo Park , Cheol Soo Sone
- 申请人: Jeong Wook Lee , Yong Jo Park , Cheol Soo Sone
- 申请人地址: KR Gyunggi-Do
- 专利权人: Samsung LED Co., Ltd.
- 当前专利权人: Samsung LED Co., Ltd.
- 当前专利权人地址: KR Gyunggi-Do
- 代理机构: McDermott Will & Emery LLP
- 优先权: KR10-2007-0112701 20071106
- 主分类号: H01L29/18
- IPC分类号: H01L29/18 ; H01L33/00
摘要:
There is provided a white light emitting device that prevents a red phosphor from resorbing wavelength-converted light to improve white luminous efficiency. A white light emitting device according to an aspect of the invention includes a package body; at least two LED chips mounted to the package body and emitting excitation light; and a molding unit including phosphors, absorbing the excitation light and emitting wavelength-converted light, in regions of the molding unit divided according to the LED chips and molding the LED chips. According to the aspect of the invention, since the phosphor for converted red light can be prevented from resorbing light generated from other regions of the molding unit, the white light emitting device that can improve white luminous efficiency or control color rendering and color temperature by adjusting a mixing ratio of converted light for white light emission.
公开/授权文献
- US20090114929A1 WHITE LIGHT EMITTING DEVICE 公开/授权日:2009-05-07
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