Invention Grant
- Patent Title: Light emitting device and method for producing the light emitting device
- Patent Title (中): 发光装置及其制造方法
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Application No.: US12498738Application Date: 2009-07-07
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Publication No.: US08134166B2Publication Date: 2012-03-13
- Inventor: Yuji Imai , Satoshi Kamiyama
- Applicant: Yuji Imai , Satoshi Kamiyama
- Applicant Address: JP Tokyo
- Assignee: Ushiodenki Kabushiki Kaisha
- Current Assignee: Ushiodenki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Roberts, Mlotkowski, Safran & Cole, P.C.
- Agent David S. Safran
- Priority: JP2008-178140 20080708; JP2008-183557 20080715
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L21/50

Abstract:
A light emitting device that has a radiant efficiency that does not decline in use, enables luminous flux to be increased by a high electric current, and produces white light with good color rendering and a method for producing a light emitting device capable of smoothly transmitting heat generated by LED elements to a carrier substrate. The radiation emitting device has first LED elements for emitting UV radiation, second LED elements for emitting visible light, a substrate made of an inorganic material and which carries the first LED elements and the second LED elements, a body made of inorganic material containing the first LED elements, the second LED elements and the substrate, and an SiC fluorescent screen that is doped with at least one of B and Al as well as N and emits visible light when excited by radiation emitted from the first LED elements.
Public/Granted literature
- US20100006871A1 LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING THE LIGHT EMITTING DEVICE Public/Granted day:2010-01-14
Information query
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