Title:
LOW VOLTAGE MERCURY VAPOR DISCHARGE LAMP
Document Type and Number:
Japanese Patent JPS5559648
Kind Code:
A
Abstract:
A low-pressure mercury vapor discharge lamp having a lamp envelope (1) which encloses a folded tubular discharge vessel (2), the discharge vessel being provided with an appendix (6) which is kept at a relatively low temperature by a heat shield (7) located within the lamp envelope. The heat shield shields the outer wall surface of the appendix from the outer wall of the discharge vessel. The cooler appendix serves to maintain the mercury vapor pressure at an optimum value during operation of the lamp.
Inventors:
MATSUKUSU REO PEETERU RENARUZU
BAUKE JIISUUERUDA
BAUKE JIISUUERUDA
Application Number:
JP13604379A
Publication Date:
May 06, 1980
Filing Date:
October 23, 1979
Export Citation:
Assignee:
PHILIPS NV
International Classes:
H01J61/24; H01J61/32; H01J61/52; (IPC1-7): H01J61/24; H01J61/35