An electric incandescent lamp for selective radiant energy distribution is disclosed which employs a reflective film for improved efficiency of the lamp operation. Said lamp further employs a tungsten filament extending the length of its elongated lamp envelope with particular support means for said incandescent filament also being disclosed to precisely position the filament along the principal lamp axis. Various structural configurations for said particular support means are also disclosed so that such filament position is maintained regardless of the lamp spatial orientation.
申请公布号
US4839559(A)
申请公布日期
1989.06.13
申请号
US19880158509
申请日期
1988.02.22
申请人
GENERAL ELECTRIC COMPANY
发明人
AHLGREN, FREDERIC F.;BERGMAN, ROLF S.;DAVENPORT, JOHN M.;HANSLER, RICHARD L.;HANTMAN, ROBERT G.;HOEGLER, LEONARD E.