A light source device in which the operating characteristic of the auxiliary
light
source can be improved, in which the starting property within the main discharge
vessel is extremely advantageous and which has high reliability with respect to
vibration resistance and impact strength without the disadvantage of a cost increase
due to the complicated arrangement of the light source device, without reducing
the proportion of good articles in the manufacture of the products, and without
reducing the quality of the discharge lamp is achieved using a main discharge lamp
mounted in a reflector with an auxiliary light source tightly held by the reflector
or components which are adjacent to the reflector and without contact with the
main discharge vessel.
