Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES246311A1publicationCriticalpatent/ES246311A1/en
A beam-emitting device comprising the combination of a high-pressure mercury vapor discharge tube and a luminescent screen containing a red luminescent substance, the emission of which during ultraviolet radiation excitation is substantially in full form above 600 m/u, characterized by the fact that the red luminescent substance has a molecular composition that fulfills the formula: (see graphic) (Machine-translation by Google Translate, not legally binding)
ES0246311A1958-01-021958-12-03A rays emitter device (Machine-translation by Google Translate, not legally binding)
ExpiredES246311A1
(en)
System to improve the safety of operation of interior electrodes used in fluorescent pipes with safety against explosions. (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the manufacture of high pressure mercury steam discharge lamps. (Machine-translation by Google Translate, not legally binding)