Global Patent Index - EP 0152264 A2

EP 0152264 A2 19850821 - Fluorescent lamp device.

Title (en)

Fluorescent lamp device.

Title (de)

Leuchtstofflampenvorrichtung.

Title (fr)

Dispositif de lampe fluorescente.

Publication

EP 0152264 A2 19850821 (EN)

Application

EP 85300761 A 19850205

Priority

  • JP 2215684 A 19840208
  • JP 2215784 A 19840208
  • JP 27722484 A 19841225

Abstract (en)

In a fluorescent lamp device, a discharge tube (10) is made by arranging electrodes (16, 17) at the ends of a glass tube, sealing mercury and a rare gas into the glass tube and coating the inner surface of the glass tube with a phosphor (22), and an amalgam forming material (24) is disposed close to one or the other of the ends of the discharge tube (10). This fluorescent lamp is operated with a d.c. current using as the anode the electrode (16 or 17) arranged on the discharge tube end side where the amalgam forming material (24) is located.

IPC 1-7

H01J 61/56; H01J 61/72; H01J 61/32

IPC 8 full level

H01J 61/32 (2006.01); H05B 41/282 (2006.01)

CPC (source: EP)

H01J 61/32 (2013.01); H05B 41/2821 (2013.01)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0152264 A2 19850821; EP 0152264 A3 19860625

DOCDB simple family (application)

EP 85300761 A 19850205