A low-pressure mercury vapor discharge lamp is provided with a discharge vessel and a first and a second end portion (12a). The discharge vessel encloses a discharge space provided with a filling of mercury and a rare gas in a gastight manner. Each end portion (12a) supports an electrode (20a) arranged in the discharge space. An electrode shield (22a) encompasses the electrodes (20a) and is covered with a material which reacts with or forms an alloy with alkaline earth metals, which material is released by the electrode (20a).
申请公布号
EP0995222(B1)
申请公布日期
2004.03.31
申请号
EP19990914705
申请日期
1999.04.29
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人
RONDA, CORNELIS, R.;DENISSEN, CORNELIS, J., M.;WEILER, VOLKER, U.;GROEN, WILHELM, A.;VAN KEMENADE, WILHELMUS, M., P.;DE MAAGT, BENNIE, J.