Title (en)

SINGLE ELECTRODE BEAM MODE FLUORESCENT LAMP FOR D.C. USE

Publication

EP 0084268 A3 19840502 (EN)

Application

EP 82307012 A 19821231

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

H01J 61/72; H01J 63/00

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