公开(公告)号：AU7937198A

公开(公告)日：1999-01-25

申请号：AU7937198

申请日：1998-07-03

Applicant: HAMAMATSU PHOTONICS KK

Inventor： IKEDA SHIRO ,  MATSUSHITA KOJI ,  WARASHINA HIDENAGA

IPC: H01J61/067 ,  H01J61/09 ,  H01J61/12 ,  H01S3/137

公开(公告)号：JPH11283558A

公开(公告)日：1999-10-15

申请号：JP8423998

申请日：1998-03-30

Applicant: HAMAMATSU PHOTONICS KK

Inventor： SHIMAZU TAKESHIGE ,  IKEDA SHIRO ,  MAKINO KOJI ,  FUKUZAWA KATSUHIRO

IPC: H01J61/09 ,  H01J61/16 ,  H01J61/30 ,  H01S3/137

Abstract: PROBLEM TO BE SOLVED: To provide a discharge tube having absorbing transition around 193.35 nm wavelength, practically usable high intensity and high bright line output stability. SOLUTION: A discharge tube 1 has a sealed container 2, and light- transmitting windows 5, 6 made of quartz glass, such as synthetic quartz are installed in the sealed container 2. A cathode 9 at least part whose is made of platinum and an anode 8 are arranged facing each other within the sealed container 2. Sealed gas which is inert with respect to platinum is sealed in the sealed container 2. A hollow part 9a is formed in the cathode 9, and the hollow part 9a may be coated with a platinum layer, or a platinum cylinder or a platinum coil may be put into the hollow part 9a with pressure.