Title:
高圧ガス放電ランプ及び高圧ガス放電ランプを備えた照明ユニット
Document Type and Number:
Japanese Patent JP4553736
Kind Code:
B2
Abstract:
A high-pressure gas discharge lamp (HID [high intensity discharge] lamp) is described which is in particular free from mercury and suitable for use in automobile technology. The lamp is remarkable in particular for a discharge space ( 2 ) which has a volume which is reduced by a given factor in comparison with the volume of the discharge space of known mercury-containing discharge lamps. The quantity of the light-generating substances in the discharge space ( 2 ) is reduced by the same factor in the simplest case, or even more strongly. This avoids the risk of an impairment of the imaging properties of the lamp because of non-evaporated light-generating substances which may shade off a portion of the luminous discharge arc ( 21 ) and/or the tips of the electrodes ( 3 ).
Inventors:
Haque, michael
Postma, Peter
Postma, Peter
Application Number:
JP2004561810A
Publication Date:
September 29, 2010
Filing Date:
December 09, 2003
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01J61/30; F21S8/10; H01J61/12; H01J61/18; H01J61/33; H01J61/82; F21Y101/00
Domestic Patent References:
| JP10321185A | ||||
| JP2001313001A | ||||
| JP64019671A | ||||
| JP2003229058A | ||||
| JP2003187745A | ||||
| JP2003123690A |
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito