Title:
HIGH-PRESSURE MERCURY LAMP AND LAMP UNIT
Document Type and Number:
Japanese Patent JP2004031153
Kind Code:
A
Abstract:
To provide a high-pressure mercury lamp having extremely high pressure for lighting operation restrained from the generation of blackening.
The high-pressure mercury lamp comprises a light-emitting tube 1 in which at least mercury 6 is sealed, and a pair of sealing parts 2 keeping the airtightness of the light-emitting tube 1. The sealed amount of the mercury on the bases of the volume of the light-emitting tube 1 is not less than 230 mg/cm3, and the lamp has a temperature keeping means (10) for keeping the temperature of the light-emitting tube 1.
Inventors:
TAKAHASHI KIYOSHI
HATAOKA SHINICHIRO
HORIUCHI MAKOTO
KAI MAKOTO
ICHIBAGASE TAKESHI
SEKI SATOYUKI
KANEKO YURIKO
HATAOKA SHINICHIRO
HORIUCHI MAKOTO
KAI MAKOTO
ICHIBAGASE TAKESHI
SEKI SATOYUKI
KANEKO YURIKO
Application Number:
JP2002186511A
Publication Date:
January 29, 2004
Filing Date:
June 26, 2002
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G03B21/00; G03B21/14; H01J17/16; H01J61/20; H01J61/26; H01J61/30; H01J61/34; H01J61/35; H01J61/36; H01J61/52; H01J61/82; H01J61/88; (IPC1-7): H01J61/52; G03B21/00; G03B21/14; H01J61/30; H01J61/35; H01J61/36; H01J61/88
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
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