Title:
LOW-PRESSURE DISCHARGE LAMP AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH06203793
Kind Code:
A
Abstract:
PURPOSE: To improve the low temperature starting capability by constituting an electron emitter by use of barium oxide containing a small quantity of metal barium. CONSTITUTION: A bar-like fluorescent lamp has a cylindrical discharge vessel, for example, having a diameter of 26mm and a length of 0.6m-1.5m. Two double spiral bar-like tungsten electrode wirings 2 are welded to both end parts within the fluorescent lamp. The bar-like electrode windings are arranged orthogonally to the discharge gap. The discharge vessel has a fluorescent lamp cover on the inner wall. The ionizing filler of the fluorescent lamp is formed of a mixture of mercury steam and rare gas mix. The electrode winding has a barium oxide electron emitter, and excessive barium is generated in the forming process of the emitter.
Inventors:
KURISUTEIAN HARUTSUIHI
ROORANTO HOFUMAN
ERORUFU BUAINHARUTO
ROORANTO HOFUMAN
ERORUFU BUAINHARUTO
Application Number:
JP25692393A
Publication Date:
July 22, 1994
Filing Date:
October 14, 1993
Export Citation:
Assignee:
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH
International Classes:
H01J9/04; H01J61/06; H01J61/067; (IPC1-7): H01J61/06; H01J9/04
Attorney, Agent or Firm:
Toshio Yano (2 outside)