Rupture characteristics of small type super high pressure discharge lamps under internal pressure

Abstract

Rupture characteristics of sealed parts in small type super high pressure lamps were investigated in this study. The rupture characteristics were important to design the quality lamps because of the operating pressure of the lamps were extremely high (more than 200atm). We employed water pressurizing system and FEM calculation to investigate the rupture characteristics. As the result, It was obtained that main factor of the rupture characteristics was disbonded area in the sealed parts and we estimate safety internal pressure of the lamps.