Title:
SHORT-ARC DISCHARGE LAMP AND LIGHT RADIATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/053945
Kind Code:
A1
Abstract:
Provided are: a short-arc discharge lamp in which a sealing part can be cooled with high efficiency without lowering the temperature of a light-emitting tube; and a light radiating device provided with this short-arc discharge lamp. This short-arc discharge lamp is provided with: a light-emitting tube constituted by a sealing part being formed so as to be continuous with one end of a light-emitting part; and a socket into which the sealing part is inserted and secured. The sealing part has a foil seal structure formed thereon. The short-arc discharge lamp is characterized in that: an internal space is formed between an outer-end surface section of the socket and an outer-end surface of the sealing part; and the outer-end surface section of the socket has a ventilation port through which cooling air flows into and out of the internal space.
Inventors:
IKEDA NAOHISA (JP)
YAMAMOTO NAOKI (JP)
SHINODA KAZUHIKO (JP)
YAMAMOTO NAOKI (JP)
SHINODA KAZUHIKO (JP)
Application Number:
PCT/JP2020/027318
Publication Date:
March 25, 2021
Filing Date:
July 14, 2020
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
International Classes:
H01J5/50; F21V29/503; F21V29/67; F21V29/83; H01J7/24; H01J61/36; H01J61/52; H01J61/86
Foreign References:
| JP2001216938A | 2001-08-10 | |||
| JP2003297228A | 2003-10-17 | |||
| JP2003132845A | 2003-05-09 | |||
| JP2013258152A | 2013-12-26 |
Attorney, Agent or Firm:
FUJIMOTO Nobuo et al. (JP)
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