公开(公告)号：EP1540703A1

公开(公告)日：2005-06-15

申请号：EP03795161.3

申请日：2003-08-29

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： SCHOLL, Robert ,  HILBIG, Rainer ,  RAUSENBERGER, Bernd

IPC分类号： H01J61/82 ,  H01J61/12 ,  H01J61/70

CPC分类号： H01J61/0677 ,  H01J61/12 ,  H01J61/70

摘要： A low-pressure gas discharge lamp is described, which is equipped with a gas-discharge vessel containing an inert gas filling as the buffer gas and an indium, thallium and/or copper halide, and with electrodes and with means for generating and maintaining a low-pressure gas discharge, which has as the electron emitter substance a compound selected from the group of ABO3 or AnBO2+n, AnC2O5+n, or AnD2O3+n, wherein: A = an alkaline earth element or a mixture of several different alkaline earth elements, B = cerium, titanium, zirconium, hafnium, or a mixture of these elements, C = vanadium, niobium, tantalum, or a mixture of these elements, D = scandium, yttrium, lanthanum, a rare earth element, or a mixture of these elements.

公开(公告)号：EP1875488A2

公开(公告)日：2008-01-09

申请号：EP06727927.3

申请日：2006-04-13

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： SCHOLL, Robert

IPC分类号： H01J61/12

CPC分类号： H01J61/70 ,  H01J61/125

摘要： The invention relates to a low-pressure gas discharge lamp comprising a gas discharge vessel with means for generating and maintaining a low-pressure gas discharge. It is an object of the invention to improve the luminous efficacy of a low- pressure gas discharge lamp containing a gas filling with an indium compound. According to the invention this is achieved by a low-pressure gas discharge lamp where less luminescence processes are employed. The low-pressure gas discharge lamp comprises a gas discharge vessel containing a gas filling on the basis of an indium halide InX, where X = F, Cl, Br, I, or a mixture of several indium halides. As a characteristic feature the gas filling includes additionally a sodium halide NaX, where X = F, Cl, Br, I, or a mixture of several sodium halides. The additional component consisting of one or more sodium halides emits light in the range of 590 nanometers. Use of a red phosphor in order to gain white light is superfluous then. The gas discharge emits light with a wavelength of 451 nanometers, blue and green light of one or more phosphors converting the UV radiation and light with a wavelength of 590 nanometers.