Patent ID: 6914383
Filing Date: 2005-07-05
Classification: H01J

Abstract:
1. Light source device, comprising: a discharge lamp within a main discharge vessel which is filled with a discharge medium, and having a pair of opposed main discharge electrodes, one of the main discharge electrodes being held in a first electrode sealing part at one end of the discharge vessel and the other of the electrodes being held in a second electrode sealing part at an opposite end of the main discharge vessel, a reflector which reflects radiant light from the discharge lamp by means of a reflection film which has been formed on an inner side of the reflector, light being reflected in a direction toward a light exit window formed in a front end of the reflector, and a starting electrode located outside of the main discharge vessel, an auxiliary light source which has an auxiliary discharge vessel which is filled with a discharge medium, a first outside electrode on an outer side of the auxiliary discharge vessel and electrically connected to the starting electrode, said auxiliary light source being mounted in the area of the reflector and without contact with the main discharge vessel.