公开(公告)号：JP2003282024A

公开(公告)日：2003-10-03

申请号：JP2003063774

申请日：2003-03-10

Applicant: Nec Micro Hakan Kk ,  エヌイーシーマイクロ波管株式会社

Inventor： NISHIDA KAZUHISA ,  UCHIKAWA TATSUYA

IPC: H01J61/073 ,  H01J61/36 ,  H01J61/88

Abstract: PROBLEM TO BE SOLVED: To provide a high-pressure discharge lamp and a sealing technology of its bulb wherein a rupture and blackening of a quartz bulb can be prevented, and there is no occurrence of failure such as a crack in a quartz bulb sealing part and an electrode falling out or the like, even when it is actuated for a long time.
SOLUTION: In the high-pressure discharge lamp in which the quartz bulb and a pair of electrodes are provided, a pair of electrodes are opposedly arranged, and the quartz bulb is air-tightly sealed at a sealing part of the quartz bulb together with one part of the electrode, this is the high-pressure discharge lamp characterized that the maximum value of the surface roughness of the tip part of the electrode, is 5 μm or less, and the high-pressure discharge lamp and the sealing technology of this bulb wherein the length of a contact part between the electrode and the quartz bulb at the sealing part is within a prescribed range.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供高压放电灯及其灯泡的密封技术，其中可以防止石英灯泡的破裂和黑化，并且不会发生诸如石英中的裂纹的故障 灯泡密封部分和电极脱落等，即使长时间被致动。 解决方案：在设置石英灯泡和一对电极的高压放电灯中，一对电极相对布置，石英灯泡密封在石英灯泡的密封部分 与电极的一部分一起，这是高压放电灯，其特征在于，电极的前端部的表面粗糙度的最大值为5μm以下，高压放电灯和密封技术 其中电极和密封部分处的石英灯泡之间的接触部分的长度在规定范围内。 版权所有（C）2004，JPO