(19)
(11) EP 1 811 541 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.03.2011 Bulletin 2011/13

(43) Date of publication A2:
25.07.2007 Bulletin 2007/30

(21) Application number: 07001082.2

(22) Date of filing: 18.01.2007
(51) International Patent Classification (IPC): 
H01J 61/12(2006.01)
H01J 61/82(2006.01)
 H01J 61/36(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 19.01.2006 JP 2006010851

(71) Applicant: USHIODENKI KABUSHIKI KAISHA
Chiyoda-ku 100 Tokyo (JP)

(72) Inventors:
  • Ishikura, Akira
    Kanzaki-gun, Hyogo-ken (JP)
  • Nose, Yoshiteru
    Kanzaki-gun, Hyogo-ken (JP)

(74) Representative: Tomerius, Isabel et al
Lang & Tomerius Patentanwälte Landsberger Strasse 300
80687 München
80687 München (DE)

   


(54) Discharge lamp with a mercury - indium iodide fill


(57) The invention relates to a discharge lamp with a bulb (10) made of an arc tube part (11) and hermetically sealing tube parts (12) in the form of rod-like tubes which are integrally adjacent to the arc tube part on two sides, with a pair of electrodes (21) being arranged opposite each other within the arc tube part and mercury as well as indium iodide being filled in the same. An electrode structural body (22) is inserted into each of the hermetically sealing tube parts in such a way that a gap (K) is present between the electrode structural body and the inside wall of the hermetically sealing tube part. The electrodes (21) are arranged on a respective tip of the electrode structural body (22) in the arc tube part, and an end section of the respective hermetically sealing tube part (12) which is averted from the arc tube is hermetically sealed by means of a hermetically sealing structure (23,30).







Search report