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Title:
HIGH-VOLTAGE DISCHARGE LAMP, LAMP UNIT, PROJECTION IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING HIGH-VOLTAGE DISCHARGE LAMP
Document Type and Number:
WIPO Patent Application WO/2010/140379
Kind Code:
A1
Abstract:
Disclosed is a high-voltage discharge lamp (100) wherein formation of cracks is minimized even under a high mercury vapor pressure. The high-voltage discharge lamp (100) is configured in such a way that the high-voltage discharge lamp (100) is provided with a glass arc tube (102) comprising an arc portion (103) which has a discharge space therein and a sealing portion (104) so provided as to be continuous with the arc portion (103) and a pair of electrodes (101) having one end opposedly disposed in the discharge space and the other end connected to a metal foil (105) and buried in the sealing portion (104) and that at least one projection (101c) is formed on the buried section of each of the paired electrodes (101).

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Inventors:
KITAHARA YOSHIKI
ONO KATSUHIRO
SAKAGUCHI JUN
SHUTO MITSUKO
NISHIDA YUTAKA
Application Number:
PCT/JP2010/003737
Publication Date:
December 09, 2010
Filing Date:
June 04, 2010
Export Citation:
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Assignee:
PANASONIC CORP (JP)
KITAHARA YOSHIKI
ONO KATSUHIRO
SAKAGUCHI JUN
SHUTO MITSUKO
NISHIDA YUTAKA
International Classes:
H01J61/36; F21S2/00; G03B21/14; H01J9/02; F21Y101/00
Foreign References:
JP2007531230A2007-11-01
JP2006040840A2006-02-09
JP2003123695A2003-04-25
JP2003086136A2003-03-20
JPH10223175A1998-08-21
JP2008522372A2008-06-26
JP2008181844A2008-08-07
Attorney, Agent or Firm:
NAKAJIMA, Shiro et al. (JP)
Shiro Nakajima (JP)
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