Title:
LOW PRESSURE DISCHARGE LAMP
Document Type and Number:
Japanese Patent JPH04292846
Kind Code:
A
Abstract:
PURPOSE: To obtain a low pressure discharge lamp allowing the extension of effective luminous length relative to overall bulb length, and ensuring long service life via the prevention of sputtering at a cathode.
CONSTITUTION: One of two electrodes is a solid electrode 5 supported on a well 8 passing through one end of a bulb in an airtight condition, and the other is a film electrode 10 comprising a conductive film formed on the inner surface of an insulation blocking body 3 sealing the other end of the bulb. In this case, the aforesaid solid electrode 5 is used as a cathode, while the film electrode 10 is used as an anode.
Inventors:
HONDA HISASHI
YUASA KUNIO
SHIBUYA MASUO
YUASA KUNIO
SHIBUYA MASUO
Application Number:
JP5675091A
Publication Date:
October 16, 1992
Filing Date:
March 20, 1991
Export Citation:
Assignee:
TOSHIBA LIGHTING & TECHNOLOGY
International Classes:
H01J61/067; H01J61/30; H01J61/35; (IPC1-7): H01J61/067; H01J61/30; H01J61/35
Attorney, Agent or Firm:
Takehiko Suzue