公开(公告)号：EP1603149A1

公开(公告)日：2005-12-07

申请号：EP04719075.6

申请日：2004-03-10

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： OGINO, Yuichiro ,  MINO, Yoshimitsu ,  KIKUCHI, Akio ,  UENO, Hironobu

IPC: H01J9/04

CPC classification number: H01J61/0732 ,  H01J9/04 ,  H01J61/86

Abstract: In a discharge lamp manufacturing method according to which a pair of electrodes is formed by fusion cutting a predetermined part of a tungsten rod (16) disposed within a sealed arc space, the fusion cutting of tungsten rod (16) for forming a pair of electrodes is executed with the entire arc-tube part heated to a temperature at which at least an arc material that includes mercury (118) enclosed within the arc tube evaporates. This allows for the arc material within the arc space to evaporate sufficiently, and for the adhesion, to the inner wall of the arc tube, of tungsten electrode material that evaporates due to the fusion cutting by laser beam to be suppressed.

Abstract translation: 在放电灯制造方法中，通过熔融切割设置在密封电弧空间内的钨棒（16）的预定部分形成一对电极，在形成一对电极的钨棒（16）的熔融切割中， 执行整个电弧管部分被加热到至少包括封闭在电弧管内的汞（118）的电弧材料蒸发的温度。 这允许电弧空间内的电弧材料充分蒸发，并且为了粘附到电弧管的内壁，由于要被抑制的激光束的熔合切割而蒸发的钨电极材料。

公开(公告)号：EP1643531A1

公开(公告)日：2006-04-05

申请号：EP04723784.7

申请日：2004-03-26

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： OGINO, Yuichiro ,  MINO, Yoshimitsu ,  KIKUCHI, Akio ,  UENO, Hironobu

IPC: H01J9/02

CPC classification number: H01J9/02 ,  H01J61/0732 ,  H01J61/86

Abstract: In the case of forming a pair of electrodes by irradiating a predetermined site on an electrode assembly disposed in a sealed discharge space and melt-cutting the same, the predetermined site on the electrode assembly is irradiated with the laser beam emitted from a direction that forms a predetermined angle θ1 with a plane that is orthogonal to a longitudinal direction of the electrode assembly. Therefore, the discharge lamp manufacturing method according to the present invention can appropriately control which electrode's side the melted electrode material moves to.

Abstract translation: 在通过在设置在密封放电空间中的电极组件上照射预定位置并对其进行熔融切割来形成一对电极的情况下，对从电极组件的形成的方向发射的激光束照射电极组件上的预定位置 一个预先确定的

公开(公告)号：EP1577922A1

公开(公告)日：2005-09-21

申请号：EP04719079.8

申请日：2004-03-10

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： OGINO, Yuichiro ,  MINO, Yoshimitsu ,  KIKUCHI, Akio ,  UENO, Hironobu ,  MURASE, Takayuki

IPC: H01J9/04

CPC classification number: H01J61/86 ,  H01J9/042 ,  H01J61/0732

Abstract: A discharge lamp manufacturing method that enables the energy loss of a laser beam irradiated from outside an arc tube to be suppressed when forming a pair of electrodes by fusion cutting a predetermined cutting site of a tungsten rod disposed within a sealed arc space. Even when a film of an arc material (e.g., mercury) forms on an inner wall of an arc tube (10) due to the arc material evaporating when the temperature of the arc tube (10) is raised as a result of a laser beam (60) being irradiated from outside the arc tube (10), this manufacturing method is able to eliminate the film through evaporation by heating the arc tube (10) with a coil heater (125) before irradiating the laser beam (60) again.