Invention Grant
- Patent Title: Coated fluorescent substance, light emitting device comprising said substance and a method for producing said substance
- Patent Title (中): 包衣荧光物质，包含所述物质的发光装置和所述物质的制造方法
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Application No.: US10544497Application Date: 2004-02-20
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Publication No.: US07678293B2Publication Date: 2010-03-16
- Inventor: Bert Braune , Torsten Fries , Rainer Schirmer , Martin Zachau , Franz Zwaschka
- Applicant: Bert Braune , Torsten Fries , Rainer Schirmer , Martin Zachau , Franz Zwaschka
- Applicant Address: DE München DE Regensburg
- Assignee: OSRAM Gesellschaft mit beschränkter Haftung,Osram Opto Semiconductors GmbH
- Current Assignee: OSRAM Gesellschaft mit beschränkter Haftung,Osram Opto Semiconductors GmbH
- Current Assignee Address: DE München DE Regensburg
- Agency: Cohen Pontani Lieberman & Pavane LLP
- Priority: DE10307281 20030220
- International Application: PCT/DE2004/000325 WO 20040220
- International Announcement: WO2004/074400 WO 20040902
- Main IPC: B32B1/00
- IPC: B32B1/00 ; H05B33/00 ; C09K11/08
Abstract:
A coated phosphor, formed by a powder of individual grains of a phosphor as base material, the grains being coated with a coating material. The layer comprises a plurality of individual layers and is particulate in form, the individual primary particles of the layer being at least 5 nm in size. The mean layer thickness is at least 20 nm.
Public/Granted literature
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