Invention Grant
- Patent Title: Luminescent substance of the class of nitride silicates and light source having such a luminescent substance
- Patent Title (中): 具有这种发光物质的氮化硅酸盐类和光源类的发光物质
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Application No.: US12375671Application Date: 2007-07-31
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Publication No.: US08093798B2Publication Date: 2012-01-10
- Inventor: Daniel Becker , Tim Fiedler , Frank Jermann , Christian Koch , Bianca Pohl
- Applicant: Daniel Becker , Tim Fiedler , Frank Jermann , Christian Koch , Bianca Pohl
- Applicant Address: DE München
- Assignee: OSRAM AG
- Current Assignee: OSRAM AG
- Current Assignee Address: DE München
- Agency: Cozen O'Connor
- Priority: DE102006036577 20060804
- International Application: PCT/EP2007/057870 WO 20070731
- International Announcement: WO2008/015207 WO 20080207
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01J63/04 ; C09K11/02
Abstract:
A phosphor from the class of nitridosilicates from the M-Al—Si—N system, comprising a cation M, wherein M is represented by Ca alone or is represented by a mixture of Ca with at least one further element from the group Ba, Sr, Mg, Zn, Cd, Li, Na, Cu, wherein the phosphor is activated with at least one element from the group Eu, Ce which partly replaces M, characterized in that the phosphor forms a phase that is to be assigned to the system M3N2-AlN-Si3N4, wherein the atomic ratio of the constituents M:Al≧0.375 and the atomic ratio Si/Al≧1.4.
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