SE312382BSE532466ASE532466ASE312382BSE 312382 BSE312382 BSE 312382BSE 532466 ASE532466 ASE 532466ASE 532466 ASE532466 ASE 532466ASE 312382 BSE312382 BSE 312382B
Authority
SE
Sweden
Application number
SE532466A
Inventor
H Klasens
P Zalm
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips NvfiledCriticalPhilips Nv
Publication of SE312382BpublicationCriticalpatent/SE312382B/xx
H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
H01J1/02—Main electrodes
H01J1/30—Cold cathodes, e.g. field-emissive cathode
H01J1/308—Semiconductor cathodes, e.g. cathodes with PN junction layers