EP 0084268 A3 19840502 - SINGLE ELECTRODE BEAM MODE FLUORESCENT LAMP FOR D.C. USE
Title (en)
SINGLE ELECTRODE BEAM MODE FLUORESCENT LAMP FOR D.C. USE
Publication
Application
Priority
US 33704782 A 19820104
Abstract (en)
[origin: EP0084268A2] The lamp shown herein is a beam mode fluorescent lamp for general lighting applications. The lamp comprises a light transmitting envelope (31), having a phosphor coating (37) on its inner surface, enclosing a single electrode (29) including a thermionic cathode (34) for emitting electrons and an integral anode (35) for accelerating the electrons and forming an electron beam, and a fill material, such as mercury, which emits ultraviolet radiation upon excitation. The electrode configuration provides for use of a single power source and minimal number of power leads. In addition, a separate cathode heater filament is not required.
IPC 1-7
IPC 8 full level
H01J 63/08 (2006.01); H01J 61/54 (2006.01); H01J 61/72 (2006.01); H01J 63/00 (2006.01); H05B 41/16 (2006.01)
CPC (source: EP)
H01J 61/72 (2013.01); H01J 63/00 (2013.01)
Citation (search report)
- [Y] US 2409771 A 19461022 - LOWRY ERWIN F, et al
- [Y] US 2774918 A 19561218 - EUGENE LEMMERS
- [A] US 3369143 A 19680213 - GILMORE JOHN F, et al
- [A] US 2403184 A 19460702 - EUGENE LEMMERS
- [APD] EP 0054959 A1 19820630 - GTE LABORATORIES INC [US]
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0084268 A2 19830727; EP 0084268 A3 19840502; CA 1190587 A 19850716; JP H0454342 B2 19920831; JP S58145056 A 19830829
DOCDB simple family (application)
EP 82307012 A 19821231; CA 417410 A 19821210; JP 2783 A 19830104