Title:
【発明の名称】ランプ
Document Type and Number:
Japanese Patent JP2983607
Kind Code:
B2
Abstract:
Mercury condensation in dual phosphor layer fluorescent lamps is inhibited by mixing alumina particles having a median particle size not less than about one-half micron with the phosphor particles in the first phosphor layer which is disposed adjacent the inner lamp envelope surface.
Inventors:
JON BENETSUTO JANSUMA
Application Number:
JP28454190A
Publication Date:
November 29, 1999
Filing Date:
October 24, 1990
Export Citation:
Assignee:
JENERARU EREKUTORITSUKU CO
International Classes:
H01J61/42; C09K11/02; H01J61/46; H01J61/48; (IPC1-7): H01J61/48
Attorney, Agent or Firm:
Tokunji Ikunuma