| 摘要 |
The mercury vapour discharge lamp is a low-pressure or high-pressure mercury vapour discharge lamp containing the phosphor on a surface facing the gas discharge, the phosphor containing a first component which luminesces when exposed to incident optical radiation in the red region and a second component which luminesces when exposed to incident optical radiation in the range from 520 to 560 nm and is activated by trivalent cerium, with yttrium aluminate garnet of the composition Y3-aCeaAl5O12. The second component contains a first phase of yttrium aluminium garnet, in which 0.0003<a<0.1 mixed with a second phase, in an amount less than twice the first phase, of an aluminate with hexagonal crystal structure having the composition LabCe1-bAl11O18, in which 0<b<1, and the second phase is present in an amount which can at least be detected by X-ray defraction analysis. …<IMAGE>… |
| 申请人 |
TUNGSRAM RESZVENYTARSASAG, BUDAPEST, HU |
发明人 |
KINCZEL, DIPL.-ING., PETER, BUDAPEST IV, HU;BALAZS, DIPL.-CHEM., LASZLO, BUDAPEST XIII, HU;SAJO, DIPL.-CHEM., GABOR, BUDAPEST IV, HU |
