Patent ID: 7944133

Claim:
A light source device, comprising: an alternating current high-pressure mercury lamp having a roughly spherical light-emitting part containing at least 0.15 mg/mm 3 of mercury and halogen within a range of 10 −6 μmol/mm 3 to 10 −2 μmol/mm 3 , and cylindrical hermetically sealed portions extending from both ends of the light-emitting part; a pair of electrodes internally arranged opposite each other within the light-emitting part; and external leads that protrude from ends of the light-emitting part for receiving alternating current; and a reflecting mirror comprising a concave reflecting part arranged so as to surround the light-emitting part and a cylindrical neck part; an adhesive for mounting of the lamp in the light source device, the adhesive surrounding the periphery of a portion of one of the hermetically sealed portions in an area in which a first one of the external leads are located; and feed wires connected to said external leads, wherein an opening is formed in the reflecting part of the reflecting mirror through which a second one of the feed wires passes, wherein a flexible tube is interposed in the opening surrounding a portion of said second one of the feed wires in manner leaving a gap within the opening between the flexible tube and one of the reflecting part and the second of the wires, and wherein the flexible tube is made from a fluorine resin.