Metal halide lamps having better lumen maintenance over the life of the lamp contain metal frame parts whose surface is oxidized either prior to lamp assembly or oxidized in-situ during operation of the lamp by oxygen or an oxidizing agent present inside the outer vitreous envelope.
申请公布号
US4918352(A)
申请公布日期
1990.04.17
申请号
US19880268144
申请日期
1988.11.07
申请人
GENERAL ELECTRIC COMPANY
发明人
HESS, CARL H.;EWING, FRANK I.;POTTER, RALPH M.;RUSSELL, TIMOTHY D.;ZUBLER, EDWARD G.