Title:
PLASMA LAMP HAVING SUPERIOR LIGHT EXTRACTION EFFICIENCY
Document Type and Number:
WIPO Patent Application WO/2013/073731
Kind Code:
A1
Abstract:
Disclosed is a plasma lamp capable of preventing a local overload and improving light extraction efficiency. A plasma lamp according to the present invention comprises: a glass tube in which a fluorescent substance is coated on an internal circumferential surface thereof and an inert gas and a metal vapor are mixed and charged therein; and a hollow-type electrode of which one end is combined with the glass tube and the other end is sealed, wherein the glass tube has a shape with a wide edge, and an outer circumferential surface of the one end of the hollow-type electrode is welded with an internal circumferential surface of the wide edge part of the glass tube by a glass frit. In this situation, the hollow-type electrode is preferably formed with a constant thickness in a longitudinal direction.
Inventors:
JAGN KIL-WAN (KR)
Application Number:
PCT/KR2011/009087
Publication Date:
May 23, 2013
Filing Date:
November 25, 2011
Export Citation:
Assignee:
CQV CO LTD (KR)
JAGN KIL-WAN (KR)
JAGN KIL-WAN (KR)
International Classes:
H01J65/00; H01J61/06; H01J61/30
Foreign References:
| KR100849435B1 | 2008-07-30 | |||
| JP2007273135A | 2007-10-18 | |||
| KR20090128109A | 2009-12-15 | |||
| KR100853808B1 | 2008-08-22 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
특허법인 대아 (KR)
특허법인 대아 (KR)
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