发明授权
US09379293B2 LED with ceramic green phosphor and protected red phosphor layer
有权
LED陶瓷绿色荧光粉和受保护的红色荧光粉层
- 专利标题： LED with ceramic green phosphor and protected red phosphor layer
- 专利标题（中）： LED陶瓷绿色荧光粉和受保护的红色荧光粉层
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申请号： US14414719申请日： 2013-07-12
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公开(公告)号： US09379293B2公开(公告)日： 2016-06-28
- 发明人: April Dawn Schricker , Kim Kevin Mai , Grigoriy Basin , Uwe Mackens , Joost Peter Andre Vogels , Aldegonda Lucia Weijers , Karl Adriaan Zijtveld
- 申请人： KONINKLIJKE PHILIPS N.V.
- 申请人地址： NL Eindhoven
- 专利权人： Koninklijke Philips N.V.
- 当前专利权人： Koninklijke Philips N.V.
- 当前专利权人地址： NL Eindhoven
- 国际申请： PCT/IB2013/055752 WO 20130712
- 国际公布： WO2014/013406 WO 20140123
- 主分类号： H01L33/50
- IPC分类号： H01L33/50 ; H01L33/00
摘要：
A ceramic green wavelength conversion element (120) is coated with a red wavelength conversion material (330) and placed above a blue light emitting element (110) such that the ceramic element (120) is attached to the light emitting element (110), thereby providing an efficient thermal coupling from the red and green converters (330, 120) to the light emitting element (110) and its associated heat sink. To protect the red converter coating (330) from the effects of subsequent processes, a sacrificial clear coating (340) is created above the red converter element (330). This clear coating (340) may be provided as a discrete layer of clear material, or it may be produced by allowing the red converters to settle to the bottom of its suspension material, thereby forming a converter-free upper layer that can be subjected to the subsequent fabrication processes.
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