CERAMIC PROJECTION LAMP

WIPO Patent Application WO/2011/153797

A1

A ceramic projection lamp is provided, which includes: a discharge vessel (1), electrode tubes (2) set at two ends of the discharge vessel, and an electrode assembly (3) extended into the discharge vessel through the electrode tubes. The discharge vessel (1) and the electrode tubes (2) are made of a material of transparent ceramic. An airtight seal is formed between the electrode assembly (3) and the electrode tubes through solder and the discharge vessel is filled with mercury. The electrode tube includes an inner tube portion and a welding groove which are connected with each other. The inner tube portion is near the discharge vessel, the welding groove is arranged at the end face and the inner diameter of the welding groove is larger than that of the inner tube portion. An airtight seal of the discharge vessel is obtained by filling the welding groove with solder. The ceramic projection lamp of the present invention has high luminous efficiency and good sealing performance.

ZHANG WANZHEN (CN)
XIE CANSHENG (CN)
GAO JU (CN)

PCT/CN2010/079376

December 15, 2011

December 02, 2010

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CHAOZHOU ORILITE LIGHTING CO LTD (CN)
ZHANG WANZHEN (CN)
XIE CANSHENG (CN)
GAO JU (CN)

H01J61/36; H01J61/30; H01J61/073

CN101459031A	2009-06-17
CN1092206A	1994-09-14
JPS5264175A	1977-05-27
CN1461038A	2003-12-10
TW200926257A	2009-06-16
CN201327815Y	2009-10-14
CN1761027A	2006-04-19
EP0587238A1	1994-03-16
CN101882558A	2010-11-10
CN1595601A	2005-03-16

OGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
广州粤高专利商标代理有限公司 (CN)

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