The invention is related to high pressure sodium lamp having a nominal power Pla. The lamp, which is designed to be operated at a very high frequency (VHF), has a discharge tube with a ceramic wall and an internal vessel diameter Dint, which encloses a discharge space in which a pair of electrodes at a mutual electrode distance ed and a filling of Na-amalgam with a sodium mol fraction (smf). According to the invention the discharge tube has a ratio ed/Dint of at most 7, preferably between about 5.5 and 4.0.
申请公布号
WO2005098902(A2)
申请公布日期
2005.10.20
申请号
WO2005IB51117
申请日期
2005.04.05
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;STUER, CINDY, B., A.;JANCZAK, JERZY;HERREMANS, HANNELORE, M., L., E.;HENDRICX, JOSEPHUS, C., M.
发明人
STUER, CINDY, B., A.;JANCZAK, JERZY;HERREMANS, HANNELORE, M., L., E.;HENDRICX, JOSEPHUS, C., M.