Invention Grant
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
- Patent Title: LED with ceramic green phosphor and protected red phosphor layer
- Patent Title (中): LED陶瓷绿色荧光粉和受保护的红色荧光粉层
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Application No.: US14414719Application Date: 2013-07-12
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Publication No.: US09379293B2Publication Date: 2016-06-28
- Inventor: April Dawn Schricker , Kim Kevin Mai , Grigoriy Basin , Uwe Mackens , Joost Peter Andre Vogels , Aldegonda Lucia Weijers , Karl Adriaan Zijtveld
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- International Application: PCT/IB2013/055752 WO 20130712
- International Announcement: WO2014/013406 WO 20140123
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/00

Abstract:
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.
Public/Granted literature
- US20150188001A1 LED WITH CERAMIC GREEN PHOSPHOR AND PROTECTED RED PHOSPHOR LAYER Public/Granted day:2015-07-02
Information query
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