公开(公告)号：JP2003109551A

公开(公告)日：2003-04-11

申请号：JP2002277737

申请日：2002-09-24

Applicant: OSRAM SYLVANIA INC

Inventor： LIMA JOSEPH V ,  WENZEL DAVID C ,  PEARSON NICOLAS

IPC: H01J61/00 ,  H01J7/22 ,  H01J61/28 ,  H01J65/00 ,  H01J65/04

Abstract: PROBLEM TO BE SOLVED: To provide an arc discharge lamp in which amalgam is separated from the arc discharge environment. SOLUTION: The arc discharge lamp has an arc chamber and the arc chamber is jointed to the above arc chamber and has an amalgam tip connected to it. The connected portion is made of a narrow tubular extended portion that is brought in the amalgam tip for an interval length shorter than the depth of the amalgam tip. The amalgam that contains bismuth is contained in the amalgam tip. This composition facilitates operation of lamp at any position and the bismuth in the amalgam enters the lamp and prevents the phosphorescent substance from becoming toxic.

公开(公告)号：CA2395000A1

公开(公告)日：2003-03-25

申请号：CA2395000

申请日：2002-07-25

Applicant: OSRAM SYLVANIA INC

Inventor： WENTZEL DAVID C ,  LIMA JOSEPH V ,  PEARSON NICOLAS

IPC: H01J61/00 ,  H01J7/22 ,  H01J61/28 ,  H01J65/00 ,  H01J65/04 ,  H01J61/52

Abstract: An arc discharge lamp comprises an arc chamber having an amalgam tip attache d to and communicating with it. The communication comprises a narrow tubular extensio n that penetrates the amalgam tip for a distance less than the depth of the tip. An amalgam that includes bismuth is contained within the amalgam tip. This construction allo ws operation of the lamp in any position and prevents the bismuth in the amalgam from penetrating the lamp and poisoning the phosphor.