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Title:
LONG TUBE SHAPE INTERNAL COUPLING ELECTRODELESS FLUORESCENT LAMP
Document Type and Number:
WIPO Patent Application WO/2012/031396
Kind Code:
A1
Abstract:
A long tube shape internal coupling electrodeless fluorescent lamp includes a glass bulb (1), an amalgam and a power coupler (3). The glass bulb (1) includes a shell (11) and an inner container (12). An annular airtight exothermal cavity (13) is encircled by the shell and the inner container. A coupling cavity (14) is positioned in the inner part of the inner container (12). The power coupler includes a cooling bar (33), a magnetic core (31) and a winding (32), which are arranged from the inside to the outside, and the power coupler is positioned in the coupling cavity. The two ends of the coupling cavity are interpenetrated and both of the ends are connected to the outer. The shell of the glass bulb is a long tube shape structure. The length of the magnetic core of the power coupler is not less than half that of the coupling cavity. The length of the winding is one fifth to four fifths that of the coupling cavity, by which the electromagnetic field can be uniformly distributed. At least one diffuse reflective layer (4) made of the high reflectivity material whose wide spectrum is 250-2000 nm and can be positioned between the inwall of the inner container approaching to the power coupler and the outer surface of the power coupler. The material of the diffuse reflective layer can be non-conducting diffuse reflective material which can resist the high temperature above 100℃.

Inventors:
CHEN WENJUN (US)
CHEN HEPING (CN)
ZHANG HEQUAN (CN)
WU JINGPING (CN)
Application Number:
PCT/CN2010/076748
Publication Date:
March 15, 2012
Filing Date:
September 09, 2010
Export Citation:
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Assignee:
FUJIAN JUAN KUANG YAMING ELECTRICAL APPLIANCE CO LTD (CN)
CHEN WENJUN (US)
CHEN HEPING (CN)
ZHANG HEQUAN (CN)
WU JINGPING (CN)
International Classes:
H01J65/04
Foreign References:
CN101950716A2011-01-19
EP0673057A21995-09-20
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADEMARK AGENCY CO., LTD. (CN)
厦门市新华专利商标代理有限公司 (CN)
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Claims: