Title:
DISCHARGE LAMP, DISCHARGE LAMP SEALING METHOD, DISCHARGE LAMP SEALING DEVICE
Document Type and Number:
WIPO Patent Application WO/1998/032147
Kind Code:
A1
Abstract:
In a discharge lamp sealing device (30), a light-emitting material is fed from an aperture portion (13b) of an arc tube (11). An electrode member (15) is inserted into the aperture portion (13b), and a glass ring (16c) is set. In this state, a lower end portion of the arc tube (11) is supported by a supporting jig (57). The arc tube (11) is sealed in a hermetic state by a feed tube (51) and inserted into a heater (40). The heater (40) melts the glass ring (16c) by heat of an infrared lamp, thus sealing the aperture portion (13b). At this point, one end portion of the arc tube (11) is supported by the supporting jig (57). As the supporting jig (57) is made of a material having a greater thermal conductivity than the material of the arc tube (11), for example, a metal material such as Al or Cu, the heat is likely to be released from the arc tube (11) to the supporting jig (57), thus restraining temperature rise of the arc tube (11). Thus, the light-emitting material sealed within the arc tube (11) may be prevented from gasifying and escaping to the outside.
Inventors:
BUNDO TETSUAKI (JP)
KITA KOJI (JP)
YAMADA NOBUYUKI (JP)
NAGAI HIROAKI (JP)
ISHIBASHI HIROTAKA (JP)
NARITA SUSUMU (JP)
HAYASHI KOICHI (JP)
KITA KOJI (JP)
YAMADA NOBUYUKI (JP)
NAGAI HIROAKI (JP)
ISHIBASHI HIROTAKA (JP)
NARITA SUSUMU (JP)
HAYASHI KOICHI (JP)
Application Number:
PCT/JP1998/000158
Publication Date:
July 23, 1998
Filing Date:
January 16, 1998
Export Citation:
Assignee:
TOTO LTD (JP)
BUNDO TETSUAKI (JP)
KITA KOJI (JP)
YAMADA NOBUYUKI (JP)
NAGAI HIROAKI (JP)
ISHIBASHI HIROTAKA (JP)
NARITA SUSUMU (JP)
HAYASHI KOICHI (JP)
BUNDO TETSUAKI (JP)
KITA KOJI (JP)
YAMADA NOBUYUKI (JP)
NAGAI HIROAKI (JP)
ISHIBASHI HIROTAKA (JP)
NARITA SUSUMU (JP)
HAYASHI KOICHI (JP)
International Classes:
H01J9/26; H01J61/36; (IPC1-7): H01J9/32; H01J9/40; H01J61/073; H01J61/30
Foreign References:
| JPS6069460U | 1985-05-16 | |||
| JPS5889756A | 1983-05-28 | |||
| JPH01213953A | 1989-08-28 |
Other References:
DATABASE WPI Week 199910, 12 December 2000 Derwent World Patents Index; Class C12, "the test"
See also references of EP 0954007A4
See also references of EP 0954007A4
Attorney, Agent or Firm:
Igarashi, Takao (3rd floor 3-2, Nishiki 1-chome, Naka-k, Nagoya-shi Aichi, JP)
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